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Update dependency uuid to v14 [SECURITY]#4527

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renovate/npm-uuid-vulnerability
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Update dependency uuid to v14 [SECURITY]#4527
renovate[bot] wants to merge 1 commit intodevelopfrom
renovate/npm-uuid-vulnerability

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@renovate renovate Bot commented Apr 23, 2026

This PR contains the following updates:

Package Change Age Confidence
uuid ^13.0.0^14.0.0 age confidence

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

GHSA-w5hq-g745-h8pq

More information

Details

Summary

v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset).
By contrast, v4, v1, and v7 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)

v14.0.0

Compare Source

Security
  • Fixes GHSA-w5hq-g745-h8pq: v3(), v5(), and v6() did not validate that writes would remain within the bounds of a caller-supplied buffer, allowing out-of-bounds writes when an invalid offset was provided. A RangeError is now thrown if offset < 0 or offset + 16 > buf.length.
⚠ BREAKING CHANGES
  • crypto is now expected to be globally defined (requires node@​20+) (#​935)
  • drop node@​18 support (#​934)
  • upgrade minimum supported TypeScript version to 5.4.3, in keeping with the project's policy of supporting TypeScript versions released within the last two years

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@renovate renovate Bot added the dependencies Pull requests that update a dependency file label Apr 23, 2026
@riccio82 riccio82 closed this Apr 24, 2026
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renovate Bot commented Apr 24, 2026

Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update. You will not get PRs for any future 14.x releases. But if you manually upgrade to 14.x then Renovate will re-enable minor and patch updates automatically.

If you accidentally closed this PR, or if you changed your mind: rename this PR to get a fresh replacement PR.

@renovate renovate Bot deleted the renovate/npm-uuid-vulnerability branch April 24, 2026 10:28
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