CVE-2026-41677 — rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length

CVE-2026-41677

rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
rust-openssl / rust-openssl	affected >= 0.9.0, < 0.10.78

CWE

CWE-125, CWE-1284

References

https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xmgf-hq76-4vx2

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.