PatchTheCVEcosign vulnerabilities and fixes
Recent CVEs affecting cosign, with upgrade or downgrade steps. 1 tracked.
cosign has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-04-07. Highest priority: CVE-2026-39395 (score 19/100).
- CVE-2026-39395 MEDIUM 4.3 UPGRADE Cosign provides code signing and transparency for containers and binaries
FAQ
How do I fix cosign 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 cosign being exploited right now?
None of the tracked cosign CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which cosign CVE should I patch first?
CVE-2026-39395 currently ranks highest (19/100): Cosign provides code signing and transparency for containers and binaries.