Improper Certificate Validation Affecting gnutls package, versions [0,]
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-CONAN-GNUTLS-16577025
- published9 May 2026
- disclosed7 May 2026
- creditUnknown
Introduced: 7 May 2026
NewCVE-2026-42011 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation via incorrect handling of name constraints during certificate validation. An attacker can bypass critical certificate validation checks by presenting a certificate chain where permitted name constraints are ignored if previous Certificate Authorities only specified excluded name constraints, potentially enabling acceptance of invalid certificates and facilitating spoofing or man-in-the-middle attacks.