Improper Certificate Validation Affecting wolfssl/wolfssl package, versions [,5.9.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-WOLFSSLWOLFSSL-15990373
- published12 Apr 2026
- disclosed9 Apr 2026
- creditUnknown
Introduced: 9 Apr 2026
NewCVE-2026-5194 (opens in a new tab)How to fix?
Upgrade wolfssl/wolfssl to version 5.9.1 or higher.
Overview
wolfssl/wolfssl is a None
Affected versions of this package are vulnerable to Improper Certificate Validation. due to missing hash/digest size and OID checks in the certificate verification process. An attacker can bypass signature verification by providing digests smaller than allowed when verifying ECDSA certificates, potentially reducing the security of certificate-based authentication if the public CA key is also known. This is only exploitable if EdDSA or ML-DSA is enabled alongside ECDSA/ECC verification.