CVE-2026-93302 wolfSSL - Authentication Bypass

wolfSSL with WOLFSSL_TRUST_PEER_CERT enabled contains a broken authentication caused by ignoring the public key in MatchTrustedPeer, letting attackers with knowledge of loaded CA certificates bypass (D)TLS authentication, exploit requires attacker to know trusted CA certificates.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.20% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Published
27 September 2026
Updated
15 October 2026
Weakness
CWE-295

Vendor fix

Update to the latest wolfSSL version, apply the fix patch, or disable OpenSSL compatible defaults and avoid loading CA certificates with wolfSSL_CTX_trust_peer_cert() or wolfSSL_trust_peer_cert().

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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