Improper Certificate Validation Affecting airtower-luna/mod_gnutls package, versions [,0.13.0)
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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- published25 Mar 2026
- disclosed24 Mar 2026
- creditIreneusz Pastusiak
Introduced: 24 Mar 2026
CVE-2026-33308 (opens in a new tab)How to fix?
Upgrade airtower-luna/mod_gnutls to version 0.13.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation via the client certificate verification. An attacker can gain unauthorized access to resources by presenting a certificate with a valid signature from a trusted CA but intended for a different key purpose.
Note: This is only exploitable if client certificate authentication is enabled and the server is configured to require client certificates.