CVE-2026-5194

CRITICAL

wolfSSL ECDSA Certificate Verification

Title source: cna

Description

Missing hash/digest size and OID checks allow digests smaller than allowed when verifying ECDSA certificates, or smaller than is appropriate for the relevant key type, to be accepted by signature verification functions. This could lead to reduced security of ECDSA certificate-based authentication if the public CA key used is also known. This affects ECDSA/ECC verification when EdDSA or ML-DSA is also enabled.

Exploits (1)

nomisec SUSPICIOUS
by jenniferreire26 · poc
https://github.com/jenniferreire26/CVE-2026-5194

Scores

CVSS v3 9.1
EPSS 0.0004
EPSS Percentile 12.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-295
Status published
Products (2)
wolfSSL/wolfSSL 3.12.0 - 5.9.1
wolfssl/wolfssl 3.12.0 - 5.9.1
Published Apr 09, 2026
Tracked Since Apr 10, 2026