ADVISORIES

• CVE-2025-26803 (NVD)
• GHSA-2cj2-qqxj-5m3r

GEM

passenger

SEVERITY

CVSS v3.x: 5.3 (Medium)

UNAFFECTED VERSIONS

• < 6.0.21

PATCHED VERSIONS

• >= 6.0.26

DESCRIPTION

The http parser in Phusion Passenger 6.0.21 through 6.0.25 before 6.0.26 allows a denial of service during parsing of a request with an invalid HTTP method.

RELATED

• https://nvd.nist.gov/vuln/detail/CVE-2025-26803
• https://blog.phusion.nl/2025/02/19/passenger-6-0-26
• https://github.com/phusion/passenger/compare/release-6.0.25...release-6.0.26
• https://github.com/phusion/passenger/releases/tag/release-6.0.26
• https://github.com/phusion/passenger/commit/bb15591646687064ab2d578d5f9660b2a4168017
• https://www.phusionpassenger.com/support
• https://github.com/advisories/GHSA-2cj2-qqxj-5m3r