PatchTheCVEmastodon vulnerabilities and fixes
Recent CVEs affecting mastodon, with upgrade or downgrade steps. 1 tracked.
mastodon has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-04-23. Highest priority: CVE-2026-41259 (score 34/100).
- CVE-2026-41259 HIGH 7.5 UPGRADE Mastodon is a free, open-source social network server based on ActivityPub
FAQ
How do I fix mastodon 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 mastodon being exploited right now?
None of the tracked mastodon CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which mastodon CVE should I patch first?
CVE-2026-41259 currently ranks highest (34/100): Mastodon is a free, open-source social network server based on ActivityPub.