CVE-2025-27111

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-93 CWE-117

Affected software

No affected versions have been published.

Timeline

Published: Mar 4, 2025
Last modified: Jun 17, 2026
NVD status: Modified

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