7.2
/ 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Description
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.
Basic Information
ID
CVE-2026-41678
Source
GitHub_M
Published
Apr 24, 2026 at 17:18
Affected Product
Vendor
rust-openssl
Product
rust-openssl
Version
>= 0.10.24, < 0.10.78
Affected Versions
rust-openssl rust-openssl >= 0.10.24, < 0.10.78