PatchTheCVEbadkeys vulnerabilities and fixes
Recent CVEs affecting badkeys, with upgrade or downgrade steps. 1 tracked.
badkeys has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-01-06. Highest priority: CVE-2026-21439 (score 35/100).
- CVE-2026-21439 MEDIUM 5.3 UPGRADE badkeys is a tool and library for checking cryptographic public keys for known vulnerabilities
FAQ
How do I fix badkeys 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 badkeys being exploited right now?
None of the tracked badkeys CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which badkeys CVE should I patch first?
CVE-2026-21439 currently ranks highest (35/100): badkeys is a tool and library for checking cryptographic public keys for known vulnerabilities.