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Status published
Medium
CVE-2025-26803
The http parser in Phusion Passenger 6.0.21 through 6.0.25 before...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.phusionpassenger.com/support
- 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://blog.phusion.nl/2025/02/19/passenger-6-0-26/
- https://github.com/phusion/passenger/commit/bb15591646687064ab2d578d5f9660b2a4168017
Affected Vendor
Phusion
View all reports →Affected Software
Passenger
Vulnerable Versions:
6.0.21
Timeline
Official Publish:
February 24th, 2025
Last Modified:
February 24th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L