CVE-2025-26803
Phusion Passenger denial of service
5.3
MEDIUM
CVSS 3.1
EPSS 0.27%
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.
How to fix CVE-2025-26803
To remediate CVE-2025-26803, upgrade the affected package to a fixed version below.
- Bitnami/passenger—upgrade to 6.0.26 or later
- —upgrade to 6.0.26 or later
- —upgrade to 6.0.26 or later
- —upgrade to 6.0.26+ds-1 or later
- —upgrade to 6.0.26 or later
Is CVE-2025-26803 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- >= 6.0.21, < 6.0.26
- >= 6.0.21, < 6.0.26
- >= 6.0.21, < 6.0.26
- from 0, < 6.0.26+ds-1
- >= 6.0.21, < 6.0.26
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |