CVE-2025-27111

Rack is a modular Ruby web server interface. The Rack::Sendfile middleware logs unsanitised header values from the X-Sendfile-Type header. An attacker can exploit this by injecting escape sequences (such as newline characters) into the header, resulting in log injection. This vulnerability is fixed in 2.2.12, 3.0.13, and 3.1.11.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53	Patch
https://github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30b	Patch
https://github.com/rack/rack/commit/b13bc6bfc7506aca3478dc5ac1c2ec6fc53f82a3	Patch
https://github.com/rack/rack/security/advisories/GHSA-8cgq-6mh2-7j6v	Mitigation Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/03/msg00016.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:rack:rack::::::ruby::*
	cpe:2.3:a:rack:rack::::::ruby::*
	cpe:2.3:a:rack:rack::::::ruby::*

History

No history.

Information

Published : 2025-03-04 16:15

Updated : 2025-11-03 22:18

NVD link : CVE-2025-27111

Mitre link : CVE-2025-27111

CVE.ORG link : CVE-2025-27111

JSON object : View

Products Affected

rack

rack

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

CWE-117

Improper Output Neutralization for Logs

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