geyser vulnerabilities and fixes
Recent CVEs affecting geyser, with upgrade or downgrade steps. 1 tracked.
geyser has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-05-11. Highest priority: CVE-2026-42188 (score 16/100).
- CVE-2026-42188 LOW 2.4 UPGRADE Geyser is a bridge between Minecraft: Bedrock Edition and Minecraft: Java Edition
FAQ
How do I fix geyser 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 geyser being exploited right now?
None of the tracked geyser CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which geyser CVE should I patch first?
CVE-2026-42188 currently ranks highest (16/100): Geyser is a bridge between Minecraft: Bedrock Edition and Minecraft: Java Edition.