PatchTheCVEpassenger vulnerabilities and fixes
Recent CVEs affecting passenger, with upgrade or downgrade steps. 1 tracked.
passenger has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2025-02-24. Highest priority: CVE-2025-26803 (score 36/100).
- CVE-2025-26803 MEDIUM 5.3 UPGRADE The http parser in Phusion Passenger 6.0.21 through 6.0.25 before 6.0.26 allows a denial of service during par
FAQ
How do I fix passenger 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 passenger being exploited right now?
None of the tracked passenger CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which passenger CVE should I patch first?
CVE-2025-26803 currently ranks highest (36/100): The http parser in Phusion Passenger 6.0.21 through 6.0.25 before 6.0.26 allows a denial of service during par.