CVE-2025-27111

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductRack
PublishedMar 4, 2025
First seenMar 4, 2025

How to fix

Update
  • rack rack2.2.12, 3.0.13, 3.1.11 or later

Affected products

ProductAffected versionsFixed in
rack rackv < 2.2.12, 3.0.0 ≤ v < 3.0.13, 3.1.0 ≤ v < 3.1.112.2.12, 3.0.13, 3.1.11

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