CVE-2026-42327

high

Published 2026-05-14 · Modified 2026-05-15

CVSS v3

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CVSS v2

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VIR risk

8.0

Description

rust-openssl has undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-42327

OS	Version	Status	Fixed in
debian	bookworm	affected
debian	bullseye	affected
debian	forky	affected
debian	sid	fixed	`0.10.79-1`
debian	trixie	affected

Ecosystem	Package	Vulnerable	Fixed
crates.io	openssl	`>=0.9.7,<0.10.79`	`0.10.79`
RUST	openssl	`>= 0.9.7, < 0.10.79`	`0.10.79`

CWE-20

Verify integrity in audit chain (admin only). AS-IS.