CVE-2026-6329
PKCS#12 MAC verification uses an attacker-controlled comparison length, weakening the integrity check on the MAC and allowing a mismatched MAC to be accepted. The PKCS#12 verify path compared the locally computed HMAC against the MAC parsed from the PKCS#12 structure using a length taken directly from the attacker-supplied input, without first verifying that it equals the length of the digest actually produced by the configured algorithm. A truncated or zero-length stored MAC could therefore be accepted, defeating the integrity protection of the MAC.
- Score
- CVSS 3.1 6.5 Medium
- Status
- Analyzed - facts@wolfssl.com
- Published
- 2026-06-25
- Last modified
- 2026-06-26
- Weaknesses
- CWE-347
Affected products
References
- https://github.com/wolfSSL/wolfssl/pull/10192
- https://www.wolfssl.com/docs/security-vulnerabilities/
