medium5.3
CVE-2025-26803
Phusion Passenger denial of service
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rubygems | passenger | >= 6.0.21, < 6.0.26 | 6.0.26 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Phusion | Passenger | from 6.0.21 before 6.0.26 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://blog.phusion.nl/2025/02/19/passenger-6-0-26/
- https://github.com/phusion/passenger/commit/bb15591646687064ab2d578d5f9660b2a4168017
- 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://www.phusionpassenger.com/support
- https://github.com/advisories/GHSA-2cj2-qqxj-5m3r
- https://nvd.nist.gov/vuln/detail/CVE-2025-26803
- https://blog.phusion.nl/2025/02/19/passenger-6-0-26
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/passenger/CVE-2025-26803.yml