CVE-2026-5194

critical · 9.3

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.

9.3

CVSS

0.4%

EPSS (exploit prob.)

39th

EPSS percentile

2026-04-09

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Red

Weaknesses

CWE-295

Affected products

Vendor	Product	Affected versions
wolfssl	wolfssl	>= 3.12.0, < 5.9.1

Check a specific version with /api/v1/cve/match.

References

https://github.com/wolfSSL/wolfssl/pull/10131
https://www.anthropic.com/research/glasswing-initial-update

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-5194