CVE-2025-27111
Escape Sequence Injection vulnerability in Rack lead to Possible Log Injection
- State
- Published
- Severity
- 6.9 Medium
- Published
- Mar 4, 2025
- Updated
- Nov 3, 2025
- Reserved
- Feb 18, 2025
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
rackrack |
|
References
- https://github.com/rack/rack/security/advisories/GHSA-8cgq-6mh2-7j6v
- https://github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53
- https://github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30b
- https://github.com/rack/rack/commit/b13bc6bfc7506aca3478dc5ac1c2ec6fc53f82a3
- https://lists.debian.org/debian-lts-announce/2025/03/msg00016.html
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