Mod_gnutls is a TLS module for Apache HTTPD based on GnuTLS. Prior to version 0.13.0, code for client certificate verification did not check the key purpose as set in the Extended Key Usage extension. An attacker with access to the private key for a valid certificate issued by a...
Vendor
mod gnutls project vulnerabilities
4 published CVES affecting mod gnutls project, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 4
- Critical
- 0
- High
- 3
- Medium
- 1
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Products
Latest mod gnutls project CVEs
Newest publication first
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MediumCVSS 5.9 EPSS 0.21%
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CVE-2026-33307 mod_gnutils has stack-based buffer overflow caused by a long client certificate chain
PublishedHighCVSS 7.5 EPSS 0.35%Mod_gnutls is a TLS module for Apache HTTPD based on GnuTLS. In versions prior to 0.12.3 and 0.13.0, code for client certificate verification imported the certificate chain sent by the client into a fixed size gnutls_x509_crt_t x509[] array without checking the number of certific...
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HighCVSS 7.5 EPSS 1.1%
Mod_gnutls is a TLS module for Apache HTTPD based on GnuTLS. Versions from 0.9.0 to 0.12.0 (including) did not properly fail blocking read operations on TLS connections when the transport hit timeouts. Instead it entered an endless loop retrying the read operation, consuming CPU...
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HighCVSS 7.5 EPSS 0.84%
mod-gnutls does not validate client certificates when "GnuTLSClientVerify require" is set in a directory context, which allows remote attackers to spoof clients via a crafted certificate.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.