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CVE-2025-27111

Escape Sequence Injection vulnerability in Rack lead to Possible Log Injection

Published: Mar 4, 2025Updated: Nov 3, 2025 Sources: CVE List NVD GHSA BDUCWE-93
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.7%
Top 51.8%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-93CWE-117

Affected Products

rackrack
Library
OSS Libraries / web-framework
rackRubyGemsOSS Libraries
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
openSUSE TumbleweedNovell Inc.
On-premOS
Operating Systems / linux-distro
Red Hat 3scale API Management PlatformRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / api-gateway
rackoss-projectOSS Libraries
rubygemspackage-ecosystemOSS Libraries
canonical ltd.commercialGBOperating Systemsaka canonical
novell inc.commercialUSOperating Systems
red hat inc.commercialUSOperating Systemsaka red hat
and 11 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available

References

https://github.com/rack/rack/security/advisories/GHSA-8cgq-6mh2-7j6v
github.com
https://github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53
github.com
https://github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30b
github.com
and 20 more references View all →

Timeline

Published
Mar 4, 2025
Last Updated
Nov 3, 2025

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