Moderate severityNVD Advisory· Published Mar 4, 2025· Updated Nov 3, 2025
Escape Sequence Injection vulnerability in Rack lead to Possible Log Injection
CVE-2025-27111
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
rackRubyGems | < 2.2.12 | 2.2.12 |
rackRubyGems | >= 3.0, < 3.0.13 | 3.0.13 |
rackRubyGems | >= 3.1, < 3.1.11 | 3.1.11 |
Affected products
34- osv-coords33 versionspkg:apk/chainguard/logstash-8pkg:apk/chainguard/logstash-8-bitnami-compatpkg:apk/chainguard/logstash-8-compatpkg:apk/chainguard/logstash-8-env2yamlpkg:apk/chainguard/logstash-8-iamguarded-compatpkg:apk/chainguard/logstash-8-with-output-opensearchpkg:apk/chainguard/logstash-jre-bcfipspkg:apk/chainguard/logstash-jre-bcfips-compatpkg:apk/chainguard/logstash-jre-bcfips-env2yamlpkg:apk/chainguard/logstash-jre-bcfips-with-output-opensearchpkg:apk/chainguard/ruby3.2-rack-2.2pkg:apk/chainguard/ruby3.3-rack-2.2pkg:apk/chainguard/ruby3.4-rack-2.2pkg:apk/chainguard/ruby4.0-rack-2.2pkg:apk/wolfi/logstash-8pkg:apk/wolfi/logstash-8-bitnami-compatpkg:apk/wolfi/logstash-8-compatpkg:apk/wolfi/logstash-8-env2yamlpkg:apk/wolfi/logstash-8-iamguarded-compatpkg:apk/wolfi/logstash-8-with-output-opensearchpkg:apk/wolfi/ruby3.2-rack-2.2pkg:apk/wolfi/ruby3.3-rack-2.2pkg:apk/wolfi/ruby3.4-rack-2.2pkg:apk/wolfi/ruby4.0-rack-2.2pkg:gem/rackpkg:rpm/opensuse/rubygem-rack-1_6&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/rubygem-rack-2.2&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/rubygem-rack&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/rubygem-rack&distro=openSUSE%20Tumbleweedpkg:rpm/suse/rubygem-rack&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP3pkg:rpm/suse/rubygem-rack&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4pkg:rpm/suse/rubygem-rack&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5pkg:rpm/suse/rubygem-rack&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6
< 8.17.3-r1+ 32 more
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.4-r0
- (no CPE)range: < 8.17.4-r0
- (no CPE)range: < 8.17.4-r0
- (no CPE)range: < 8.17.4-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 8.17.3-r1
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.22-r0
- (no CPE)range: < 2.2.12
- (no CPE)range: < 1.6.8-150000.3.6.1
- (no CPE)range: < 2.2.12-1.1
- (no CPE)range: < 2.0.8-150000.3.26.1
- (no CPE)range: < 3.1.12-1.1
- (no CPE)range: < 2.0.8-150000.3.26.1
- (no CPE)range: < 2.0.8-150000.3.26.1
- (no CPE)range: < 2.0.8-150000.3.26.1
- (no CPE)range: < 2.0.8-150000.3.26.1
Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-8cgq-6mh2-7j6vghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-27111ghsaADVISORY
- github.com/rack/rack/commit/803aa221e8302719715e224f4476e438f2531a53ghsax_refsource_MISCWEB
- github.com/rack/rack/commit/aeac570bb8080ca7b53b7f2e2f67498be7ebd30bghsax_refsource_MISCWEB
- github.com/rack/rack/commit/b13bc6bfc7506aca3478dc5ac1c2ec6fc53f82a3ghsax_refsource_MISCWEB
- github.com/rack/rack/security/advisories/GHSA-8cgq-6mh2-7j6vghsax_refsource_CONFIRMWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2025-27111.ymlghsaWEB
- lists.debian.org/debian-lts-announce/2025/03/msg00016.htmlghsaWEB
News mentions
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