{"id":"CVE-2026-44662","aliases":["GHSA-xv59-967r-8726"],"url":"https://o3.security/vulnerability/CVE-2026-44662","summary":"rust-openssl: Heap buffer overflow when encrypting with AES key-wrap-with-padding","details":"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.","published":"2026-05-14T20:18:43.627Z","modified":"2026-08-07T11:51:08.157734388Z","cvss":null,"epss":{"score":0.00172,"percentile":0.06849,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"openssl","fixedVersion":"0.10.79"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44662.json"},{"type":"ADVISORY","url":"https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xv59-967r-8726"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44662"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:51:08.157734388Z"}}