{"id":"UBUNTU-CVE-2025-26803","details":"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.","modified":"2026-05-20T16:20:59.388709430Z","published":"2025-02-24T16:15:00Z","upstream":["CVE-2025-26803"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-26803"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-26803"},{"type":"REPORT","url":"https://blog.phusion.nl/2025/02/19/passenger-6-0-26/"},{"type":"REPORT","url":"https://github.com/phusion/passenger/commit/bb15591646687064ab2d578d5f9660b2a4168017"},{"type":"REPORT","url":"https://github.com/phusion/passenger/compare/release-6.0.25...release-6.0.26"},{"type":"REPORT","url":"https://github.com/phusion/passenger/releases/tag/release-6.0.26"},{"type":"REPORT","url":"https://www.phusionpassenger.com/support"}],"affected":[{"package":{"name":"passenger","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/passenger?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.24+ds-3","6.0.26+ds-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-passenger","binary_version":"6.0.26+ds-1.1"},{"binary_name":"passenger","binary_version":"6.0.26+ds-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-26803.json"}},{"package":{"name":"passenger","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/passenger?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.26+ds-1.1","6.1.1+ds-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libapache2-mod-passenger","binary_version":"6.1.1+ds-1"},{"binary_version":"6.1.1+ds-1","binary_name":"passenger"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-26803.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}