CVE-2026-41907: uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-41907 is a high-severity flaw (CVSS 7.5) affecting uuid. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 72%)
CISA exploited list	No
Weakness	CWE-787, CWE-823
Published	2026-04-24
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: uuidjs

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-24 19:17 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

uuidjs uuid UPGRADE

Affected: < 11.1.1 · 12.0.0 · 13.0.0

Fixed in: 11.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls uuid

2. UPGRADE to 11.1.1

npm install uuid@">=11.1.1"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41907?

uuid: upgrade to 11.1.1. Exact commands for each OS are on this page.

Is CVE-2026-41907 being exploited?

CVE-2026-41907 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41907 affect?

CVE-2026-41907 affects uuid. Severity is high (CVSS 7.5). uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-pr

How urgent is CVE-2026-41907?

Priority 43/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-41988 LOW 3.2 UPGRADE uuid before 14.0.0 can make unexpected writes when external output buffers are used, and the UUID version is 3

References

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