CVE-2025-27111

MEDIUM EPSS 48.5%
Published Mar 4, 20251y ago · Modified Jun 17, 20262w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Mar 4, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
48.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-117
CWE-93

Affected Products 3

VendorProductVersionRange
rackrack* <2.2.12
rackrack*≥3.0.0  –  <3.0.13
rackrack*≥3.1.0  –  <3.1.11

References 5

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

Remediation

  • github.com https://github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53
    Patch
  • github.com https://github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30b
    Patch
  • github.com https://github.com/rack/rack/commit/b13bc6bfc7506aca3478dc5ac1c2ec6fc53f82a3
    Patch