CVE-2026-41678

rust-openssl provides OpenSSL bindings for the Rust programming language. From to before 0.10.78, aes::unwrap_key() contains an incorrect assertion: it checks that out.len() + 8 <= in_.len(), but this condition is reversed. The intended invariant is out.len() >= in_.len() - 8, ensuring the output buffer is large enough. Because of the inverted check, the function only accepts buffers at or below the minimum required size and rejects larger ones. If a smaller buffer is provided the function will write past the end of out by in_.len() - 8 - out.len() bytes, causing an out-of-bounds write from a safe public function. This vulnerability is fixed in 0.10.78.

The following products are affected by CVE-2026-41678 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-41678.

URL	Resource
https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-8c75-8mhr-p7r9