CVE-2025-26803 — Use of Uninitialized Resource in Passenger

CWE-908 — Use of Uninitialized Resource6 documents5 sources
Severity
7.5HIGHNVD
CNA5.3
EPSS
0.3%
top 49.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Phusion Passenger
Timeline
PublishedFeb 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶CVEListV5phusion/passenger6.0.21 — 6.0.26
▶NVDphusion/passenger6.0.21 — 6.0.26
▶RubyGemsphusion/passenger6.0.21 — 6.0.26
▶Debianphusion/passenger< 6.0.26+ds-1+1

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

4
CVEList
CVE-2025-26803: The http parser in Phusion Passenger 6↗2025-02-24
▶
GHSA
Phusion Passenger denial of service↗2025-02-24
▶
OSV
CVE-2025-26803: The http parser in Phusion Passenger 6↗2025-02-24
▶
OSV
Phusion Passenger denial of service↗2025-02-24
▶

📋Vendor Advisories

1
Debian
CVE-2025-26803: passenger - The http parser in Phusion Passenger 6.0.21 through 6.0.25 before 6.0.26 allows ...↗2025
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CVE-2025-26803 — Use of Uninitialized Resource | cvebase