CVE-2026-5479

In wolfSSL's EVP layer, the ChaCha20-Poly1305 AEAD decryption path in wolfSSL_EVP_CipherFinal (and related EVP cipher finalization functions) fails to verify the authentication tag before returning plaintext to the caller. When an application uses the EVP API to perform ChaCha20-Poly1305 decryption, the implementation computes or accepts the tag but does not compare it against the expected value.

Score
CVSS 3.1 8.1 High
Status
Analyzed - facts@wolfssl.com
Published
2026-04-10
Last modified
2026-04-22
Weaknesses
CWE-354

Affected products

References