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

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-41907

Published

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.

Source published
24 Apr 2026 18:09:24 UTC
Source modified
27 Apr 2026 13:35:34 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
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CVSS 4.0 · 8.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U

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Sources read 30 Oct 02:03 UTC · 272 of 272 readable · 271 fully read · documentation 469/469 current