Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sfackler | Openssl | >= 0.10.50, < 0.10.80 |
Related Weaknesses (CWE)
References
- https://github.com/rust-openssl/rust-openssl/commit/19eceb26f2404aae187e5444e65cPatch
- https://github.com/rust-openssl/rust-openssl/pull/2638Issue TrackingPatch
- https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.80ProductRelease Notes
- https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-phqj-4mhp-Vendor Advisory
FAQ
What is CVE-2026-45784?
CVE-2026-45784 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 ...
How severe is CVE-2026-45784?
CVE-2026-45784 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45784?
Check the references section above for vendor advisories and patch information. Affected products include: Sfackler Openssl.