{"id":"CVE-2026-45784","aliases":["GHSA-phqj-4mhp-q6mq"],"url":"https://o3.security/vulnerability/CVE-2026-45784","summary":"rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers","details":"rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.50 until 0.10.80, CipherCtxRef::cipher_update_inplace in openssl/src/cipher_ctx.rs 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 issue is fixed in version 0.10.80.","published":"2026-07-17T20:26:12.969Z","modified":"2026-08-14T18:51:36.390377977Z","cvss":null,"epss":{"score":0.00134,"percentile":0.03341,"asOf":"2026-08-15"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"openssl","fixedVersion":"0.10.80"}],"fix":{"url":"https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7","label":"rust-openssl/rust-openssl@19eceb2"},"references":[{"type":"WEB","url":"https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45784.json"},{"type":"ADVISORY","url":"https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-q6mq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45784"},{"type":"FIX","url":"https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65c404ebc1348a7"},{"type":"FIX","url":"https://github.com/rust-openssl/rust-openssl/pull/2638"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T18:51:36.390377977Z"}}