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.
References (5)
Core 5
Core References
Mitigation, Vendor Advisory x_refsource_confirm
https://github.com/rack/rack/security/advisories/GHSA-8cgq-6mh2-7j6v
Patch x_refsource_misc
https://github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53
Patch x_refsource_misc
https://github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30b
Patch x_refsource_misc
https://github.com/rack/rack/commit/b13bc6bfc7506aca3478dc5ac1c2ec6fc53f82a3
Scores
CVSS v3
7.5
EPSS
0.0070
EPSS Percentile
48.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-93
CWE-117
Status
published
Products (2)
rack/rack
< 2.2.12
rubygems/rack
0 - 2.2.12RubyGems
Published
Mar 04, 2025
Tracked Since
Feb 18, 2026