CVE-2026-5194CRITICAL 9.1EPSS p36.9%

CVE-2026-5194CVE-2026-5194

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.47% probability of exploitation · percentile 36.9% · 2026-06-18T12:00:27Z
Published2026-04-09
Last modified2026-05-23

Underlying weaknesses· 1

CWE-295

References

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

1

TypeTargetConfidenceTier
WeaknessImproper Certificate Validationcwe-2950%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-9758
CVE
CVE-2026-39829
CVE
CVE-2025-9293
CVE
CVE-2026-5264
CVE
CVE-2026-50752
CVE
CVE-2025-59614
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.