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Update dependency uuid to v11 [SECURITY]#5934

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Update dependency uuid to v11 [SECURITY]#5934
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renovate/npm-uuid-vulnerability

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@renovate renovate Bot commented May 21, 2026

This PR contains the following updates:

Package Change Age Confidence
uuid ^3.0.1 → ^11.0.0 age confidence

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uuid: Missing buffer bounds check in v3/v5/v6 when buf is provided

CVE-2026-41907 / GHSA-w5hq-g745-h8pq

More information

Details

Summary

The v3(), v5(), and v6() API methods (not uuid release versions) accept external output buffers but do not reject out-of-range writes (small buf or large offset).
By contrast, v4(), v1(), and v7() API methods explicitly throw RangeError on invalid bounds.

This inconsistency allows silent partial writes into caller-provided buffers.

Affected code
  • src/v35.ts (v3()/v5() path) writes buf[offset + i] without bounds validation.
  • src/v6.ts writes buf[offset + i] without bounds validation.
Reproducible PoC
cd /home/StrawHat/uuid
npm ci
npm run build

node --input-type=module -e "
import {v4,v5,v6} from './dist-node/index.js';
const ns='6ba7b810-9dad-11d1-80b4-00c04fd430c8';
for (const [name,fn] of [
  ['v4()',()=>v4({},new Uint8Array(8),4)],
  ['v5()',()=>v5('x',ns,new Uint8Array(8),4)],
  ['v6()',()=>v6({},new Uint8Array(8),4)],
]) {
  try { fn(); console.log(name,'NO_THROW'); }
  catch(e){ console.log(name,'THREW',e.name); }
}"

Observed:

  • v4() THREW RangeError
  • v5() NO_THROW
  • v6() NO_THROW

Example partial overwrite evidence captured during audit:

same true buf [
  170, 170, 170, 170,
   75, 224, 100,  63
]
v6 [
  187, 187, 187, 187,
   31,  19, 185,  64
]
Security impact
  • Primary: integrity/robustness issue (silent partial output).
  • If an application assumes full UUID writes into preallocated buffers, this can produce malformed/truncated/partially stale identifiers without error.
  • In systems where caller-controlled offsets/buffer sizes are exposed indirectly, this may become a security-relevant logic flaw.
Suggested fix

Add the same guard used by v4()/v1()/v7():

if (offset < 0 || offset + 16 > buf.length) {
  throw new RangeError(`UUID byte range ${offset}:${offset + 15} is out of buffer bounds`);
}

Apply to:

  • src/v35.ts (covers v3() and v5())
  • src/v6.ts

Severity

  • CVSS Score: 6.3 / 10 (Medium)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Release Notes

uuidjs/uuid (uuid)

v11.1.1

Compare Source

v11.1.0

Compare Source

Features
  • update TS types to allowUint8Array subtypes for buffer option (#​865) (a5231e7)

v11.0.5

Compare Source

Bug Fixes

v11.0.4

Compare Source

Bug Fixes

v11.0.3

Compare Source

Bug Fixes

v11.0.2

Compare Source

Bug Fixes

v11.0.1

Compare Source

Bug Fixes

v11.0.0

Compare Source

⚠ BREAKING CHANGES
  • refactor v1 internal state and options logic (#​780)
  • refactor v7 internal state and options logic, fixes #​764 (#​779)
  • Port to TypeScript, closes #​762 (#​763)
  • update node support matrix (only support node 16-20) (#​750)
Features
Bug Fixes

v10.0.0

Compare Source

⚠ BREAKING CHANGES
  • update node support (drop node@​12, node@​14, add node@​20) (#​750)
Features
Bug Fixes

v9.0.1

Compare Source

build
  • Fix CI to work with Node.js 20.x

v9.0.0

Compare Source

⚠ BREAKING CHANGES

  • Drop Node.js 10.x support. This library always aims at supporting one EOLed LTS release which by this time now is 12.x which has reached EOL 30 Apr 2022.

  • Remove the minified UMD build from the package.

    Minified code is hard to audit and since this is a widely used library it seems more appropriate nowadays to optimize for auditability than to ship a legacy module format that, at best, serves educational purposes nowadays.

    For production browser use cases, users should be using a bundler. For educational purposes, today's online sandboxes like replit.com offer convenient ways to load npm modules, so the use case for UMD through repos like UNPKG or jsDelivr has largely vanished.

  • Drop IE 11 and Safari 10 support. Drop support for browsers that don't correctly implement const/let and default arguments, and no longer transpile the browser build to ES2015.

    This also removes the fallback on msCrypto instead of the crypto API.

    Browser tests are run in the first supported version of each supported browser and in the latest (as of this commit) version available on Browserstack.

Features
Bug Fixes
build
8.3.2 (2020-12-08)
Bug Fixes
8.3.1 (2020-10-04)
Bug Fixes

v8.3.2

Compare Source

⚠ BREAKING CHANGES

  • Drop Node.js 10.x support. This library always aims at supporting one EOLed LTS release which by this time now is 12.x which has reached EOL 30 Apr 2022.

  • Remove the minified UMD build from the package.

    Minified code is hard to audit and since this is a widely used library it seems more appropriate nowadays to optimize for auditability than to ship a legacy module format that, at best, serves educational purposes nowadays.

    For production browser use cases, users should be using a bundler. For educational purposes, today's online sandboxes like replit.com offer convenient ways to load npm modules, so the use case for UMD through repos like UNPKG or jsDelivr has largely vanished.

  • Drop IE 11 and Safari 10 support. Drop support for browsers that don't correctly implement const/let and default arguments, and no longer transpile the browser build to ES2015.

    This also removes the fallback on msCrypto instead of the crypto API.

    Browser tests are run in the first supported version of each supported browser and in the latest (as of this commit) version available on Browserstack.

Features
Bug Fixes
build
8.3.2 (2020-12-08)
Bug Fixes
8.3.1 (2020-10-04)
Bug Fixes

v8.3.1

Compare Source

⚠ BREAKING CHANGES

  • Drop Node.js 10.x support. This library always aims at supporting one EOLed LTS release which by this time now is 12.x which has reached EOL 30 Apr 2022.

  • Remove the minified UMD build from the package.

    Minified code is hard to audit and since this is a widely used library it seems more appropriate nowadays to optimize for auditability than to ship a legacy module format that, at best, serves educational purposes nowadays.

    For production browser use cases, users should be using a bundler. For educational purposes, today's online sandboxes like replit.com offer convenient ways to load npm modules, so the use case for UMD through repos like UNPKG or jsDelivr has largely vanished.

  • Drop IE 11 and Safari 10 support. Drop support for browsers that don't correctly implement const/let and default arguments, and no longer transpile the browser build to ES2015.

    This also removes the fallback on msCrypto instead of the crypto API.

    Browser tests are run in the first supported version of each supported browser and in the latest (as of this commit) version available on Browserstack.

Features
Bug Fixes
build
8.3.2 (2020-12-08)
Bug Fixes
8.3.1 (2020-10-04)
Bug Fixes

v8.3.0

Compare Source

⚠ BREAKING CHANGES

  • Drop Node.js 10.x support. This library always aims at supporting one EOLed LTS release which by this time now is 12.x which has reached EOL 30 Apr 2022.

  • Remove the minified UMD build from the package.

    Minified code is hard to audit and since this is a widely used library it seems more appropriate nowadays to optimize for auditability than to ship a legacy module format that, at best, serves educational purposes nowadays.

    For production browser use cases, users should be using a bundler. For educational purposes, today's online sandboxes like replit.com offer convenient ways to load npm modules, so the use case for UMD through repos like UNPKG or jsDelivr has largely vanished.

  • Drop IE 11 and Safari 10 support. Drop support for browsers that don't correctly implement const/let and default arguments, and no longer transpile the browser build to ES2015.

    This also removes the fallback on msCrypto instead of the crypto API.

    Browser tests are run in the first supported version of each supported browser and in the latest (as of this commit) version available on Browserstack.

Features
Bug Fixes
build
8.3.2 (2020-12-08)
Bug Fixes
8.3.1 (2020-10-04)
Bug Fixes

v8.2.0

Compare Source

Features
Bug Fixes

v8.1.0

Compare Source

Features
Bug Fixes

v8.0.0

Compare Source

⚠ BREAKING CHANGES

  • For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export.

    -import uuid from 'uuid';
-console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869'
+import { v4 as uuidv4 } from 'uuid';
+uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d'

  • Deep requiring specific algorithms of this library like require('uuid/v4'), which has been deprecated in uuid@7, is no longer supported.

    Instead use the named exports that this module exports.

    For ECMAScript Modules (ESM):

    -import uuidv4 from 'uuid/v4';
+import { v4 as uuidv4 } from 'uuid';
uuidv4();

    For CommonJS:

    -const uuidv4 = require('uuid/v4');
+const { v4: uuidv4 } = require('uuid');
uuidv4();
Features
Bug Fixes
  • add CommonJS syntax example to README quickstart section (#​417) (e0ec840)
7.0.3 (2020-03-31)
Bug Fixes
7.0.2 (2020-03-04)
Bug Fixes
7.0.1 (2020-02-25)
Bug Fixes

v7.0.3

Compare Source

⚠ BREAKING CHANGES

  • For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export.

    -import uuid from 'uuid';
-console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869'
+import { v4 as uuidv4 } from 'uuid';
+uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d'

  • Deep requiring specific algorithms of this library like require('uuid/v4'), which has been deprecated in uuid@7, is no longer supported.

    Instead use the named exports that this module exports.

    For ECMAScript Modules (ESM):

    -import uuidv4 from 'uuid/v4';
+import { v4 as uuidv4 } from 'uuid';
uuidv4();

    For CommonJS:

    -const uuidv4 = require('uuid/v4');
+const { v4: uuidv4 } = require('uuid');
uuidv4();
Features
Bug Fixes
  • add CommonJS syntax example to README quickstart section (#​417) (e0ec840)
7.0.3 (2020-03-31)
Bug Fixes
7.0.2 (2020-03-04)
Bug Fixes
7.0.1 (2020-02-25)
Bug Fixes

v7.0.2

Compare Source

⚠ BREAKING CHANGES

  • For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export.

    -import uuid from 'uuid';
-console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869'
+import { v4 as uuidv4 } from 'uuid';
+uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d'

  • Deep requiring specific algorithms of this library like require('uuid/v4'), which has been deprecated in uuid@7, is no longer supported.

    Instead use the named exports that this module exports.

    For ECMAScript Modules (ESM):

    -import uuidv4 from 'uuid/v4';
+import { v4 as uuidv4 } from 'uuid';
uuidv4();

    For CommonJS:

    -const uuidv4 = require('uuid/v4');
+const { v4: uuidv4 } = require('uuid');
uuidv4();
Features
Bug Fixes
  • add CommonJS syntax example to README quickstart section (#​417) (e0ec840)
7.0.3 (2020-03-31)
Bug Fixes
7.0.2 (2020-03-04)
Bug Fixes
7.0.1 (2020-02-25)
Bug Fixes

v7.0.1

Compare Source

⚠ BREAKING CHANGES

  • For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export.

    -import uuid from 'uuid';
-console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869'
+import { v4 as uuidv4 } from 'uuid';
+uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d'

  • Deep requiring specific algorithms of this library like require('uuid/v4'), which has been deprecated in uuid@7, is no longer supported.

    Instead use the named exports that this module exports.

    For ECMAScript Modules (ESM):

    -import uuidv4 from 'uuid/v4';
+import { v4 as uuidv4 } from 'uuid';
uuidv4();

    For CommonJS:

    -const uuidv4 = require('uuid/v4');
+const { v4: uuidv4 } = require('uuid');
uuidv4();
Features
Bug Fixes
  • add CommonJS syntax example to README quickstart section (#​417) (e0ec840)
7.0.3 (2020-03-31)
Bug Fixes
7.0.2 (2020-03-04)
Bug Fixes
7.0.1 (2020-02-25)
Bug Fixes

v7.0.0

Compare Source

⚠ BREAKING CHANGES

  • For native ECMAScript Module (ESM) usage in Node.js only named exports are exposed, there is no more default export.

    -import uuid from 'uuid';
-console.log(uuid.v4()); // -> 'cd6c3b08-0adc-4f4b-a6ef-36087a1c9869'
+import { v4 as uuidv4 } from 'uuid';
+uuidv4(); // ⇨ '9b1deb4d-3b7d-4bad-9bdd-2b0d7b3dcb6d'

  • Deep requiring specific algorithms of this library like require('uuid/v4'), which has been deprecated in uuid@7, is no longer supported.

    Instead use the named exports that this module exports.

    For ECMAScript Modules (ESM):

    -import uuidv4 from 'uuid/v4';
+import { v4 as uuidv4 } from 'uuid';
uuidv4();

    For CommonJS:

    -const uuidv4 = require('uuid/v4');
+const { v4: uuidv4 } = require('uuid');
uuidv4();
Features
Bug Fixes
  • add CommonJS syntax example to README quickstart section (#​417) (e0ec840)
7.0.3 (2020-03-31)
Bug Fixes
7.0.2 (2020-03-04)
Bug Fixes
7.0.1 (2020-02-25)
Bug Fixes

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@renovate renovate Bot added the renovate PR automatically generated by renovate label May 21, 2026
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