CVE-2026-44662
Description
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Windows Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 0.10.79-1 |
| forky | Fixed | 0.10.79-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xv59-967r-8726
- https://nvd.nist.gov/vuln/detail/CVE-2026-44662
- https://github.com/rust-openssl/rust-openssl
- https://security-tracker.debian.org/tracker/CVE-2026-44662
- https://github.com/advisories/GHSA-xv59-967r-8726
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44662
CWEs
CWE-122
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.