CVE WatchJul 29, 2026

CVE-2026-45784

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.50 until 0.10.80, CipherCtxRef::cipher_update_inplace in

CVSS

7.1

High

EPSS

0.1%

KEV

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Exploit Today

0-100

Published: Jul 17, 2026 · Last modified: Jul 29, 2026 · CWE-131 · CWE-787

EPSS · 30d

0.1%EPSS · 30 days0.1%

2026-08-042026-08-31

Technical 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.

Official references

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