Know every vulnerabilitybefore it knows you.
DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.
RUSTSEC-2026-0476
opensslCipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec and symm::Crypter::update require (or allocate) input.len() + block_size bytes of output. With the AES key-wrap-with-padding ciphers (EVP_aes_128_wrap_pad, EVP_aes_192_wrap_pad, EVP_aes_256_wrap_pad), OpenSSL pads the input to a multiple of 8 bytes and adds an 8-byte block, so when the input length is not a multiple of 8 it writes up to 7 bytes past the end of the caller's buffer or Vec. If an attacker can influence the plaintext length, this is heap corruption they can partly control.
Only users of the AES key-wrap-with-padding ciphers are affected. 0.10.79 sizes the output for these ciphers as the input length rounded up to a multiple of 8, plus 8.
Upload your own SBOM in CycloneDX 1.6 or higher (JSON) directly here to check your vulnerabilities.
Drag and drop some file here, or click to select
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.
Checkout DevGuard