CVE-2026-41907

vendorUSosv

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

view advisory published 2026-04-24Licence: per source

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.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2026-41988US	low2.5	0.18% (8th)	—	2026-04-23
uuid before 14.0.0 can make unexpected writes when external output buffers are used, and the UUID version is 3, 5, or 6. In particular, UUID version 4, which is very commonly used,…

references

External citations — patches, advisories, analysis.

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41907.jsonADVISORY
https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pqADVISORY
https://nvd.nist.gov/vuln/detail/CVE-2026-41907ADVISORY

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