CVE-2026-41677

Name	CVE-2026-41677
Description	rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.0 to before 0.10.78, the *_from_pem_callback APIs did not validate the length returned by the user's callback. A password callback that returns a value larger than the buffer it was given can cause some versions of OpenSSL to over-read this buffer. OpenSSL 3.x is not affected by this. This vulnerability is fixed in 0.10.78.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1134881

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rust-openssl (PTS)	bullseye	0.10.29-1	vulnerable
	bullseye (security)	0.10.29-1+deb11u1	vulnerable
	bookworm	0.10.45-1	vulnerable
	trixie	0.10.72-1	vulnerable
	forky	0.10.73-1	vulnerable
	sid	0.10.78-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
rust-openssl	source	(unstable)	0.10.78-1			1134881

Notes

[trixie] - rust-openssl <no-dsa> (Minor issue)
[bookworm] - rust-openssl <no-dsa> (Minor issue)
https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xmgf-hq76-4vx2