GnuTLS vulnerabilities and fixes

CVEs that mention GnuTLS, ranked by priority. 4 tracked.

GnuTLS has 4 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-10-20. Highest priority: CVE-2024-12243 (score 41/100).

• CVE-2024-12243 MEDIUM 5.3 A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing
• CVE-2024-28834 MEDIUM 5.3 A flaw was found in GnuTLS
• CVE-2024-28835 MEDIUM 5.0 A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a spe
• CVE-2026-107928 HIGH n/a When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer

FAQ

How do I fix GnuTLS vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is GnuTLS being exploited right now?

None of the tracked GnuTLS CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which GnuTLS CVE should I patch first?

CVE-2024-12243 currently ranks highest (41/100): A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing.

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