Low severityNVD Advisory· Published Feb 28, 2024· Updated Feb 13, 2025
Possible Denial of Service Vulnerability in Rack Header Parsing
CVE-2024-26146
Description
Rack is a modular Ruby web server interface. Carefully crafted headers can cause header parsing in Rack to take longer than expected resulting in a possible denial of service issue. Accept and Forwarded headers are impacted. Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2 or newer are unaffected. This vulnerability is fixed in 2.0.9.4, 2.1.4.4, 2.2.8.1, and 3.0.9.1.
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 | >= 3.0.0, < 3.0.9.1 | 3.0.9.1 |
rackRubyGems | >= 2.2.0, < 2.2.8.1 | 2.2.8.1 |
rackRubyGems | >= 2.1.0, < 2.1.4.4 | 2.1.4.4 |
rackRubyGems | < 2.0.9.4 | 2.0.9.4 |
Affected products
39- osv-coords38 versionspkg:apk/chainguard/kube-fluentd-operatorpkg:apk/chainguard/kube-fluentd-operator-compatpkg:apk/chainguard/kube-fluentd-operator-default-configpkg:apk/chainguard/kube-fluentd-operator-oci-entrypointpkg:apk/chainguard/logstashpkg:apk/chainguard/logstash-compatpkg:apk/chainguard/logstash-env2yamlpkg: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/logstash-with-output-opensearchpkg:apk/chainguard/ruby3.2-rackpkg:apk/chainguard/ruby3.2-rack-2.2pkg:apk/wolfi/kube-fluentd-operatorpkg:apk/wolfi/kube-fluentd-operator-compatpkg:apk/wolfi/kube-fluentd-operator-default-configpkg:apk/wolfi/kube-fluentd-operator-oci-entrypointpkg:apk/wolfi/logstashpkg:apk/wolfi/logstash-compatpkg:apk/wolfi/logstash-env2yamlpkg:apk/wolfi/logstash-with-output-opensearchpkg:apk/wolfi/ruby3.2-rackpkg:apk/wolfi/ruby3.2-rack-2.2pkg:deb/ubuntu/ruby-rack@2.2.4-3ubuntu0.1?arch=source&distro=manticpkg:gem/rackpkg:rpm/almalinux/pcspkg:rpm/almalinux/pcs-snmppkg:rpm/opensuse/rubygem-rack-2.2&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/rubygem-rack&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/rubygem-rack&distro=openSUSE%20Tumbleweedpkg:rpm/suse/rubygem-rack-1_4&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Containers%2012pkg:rpm/suse/rubygem-rack&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP2pkg: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%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/rubygem-rack&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1.18.2-r3+ 37 more
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 8.13.2-r0
- (no CPE)range: < 8.13.2-r0
- (no CPE)range: < 8.13.2-r0
- (no CPE)range: < 8.13.2-r0
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 3.0.9.1-r0
- (no CPE)range: < 2.2.8.1-r0
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 1.18.2-r3
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 8.12.2-r2
- (no CPE)range: < 3.0.9.1-r0
- (no CPE)range: < 2.2.8.1-r0
- (no CPE)range: < 2.2.4-3ubuntu0.1
- (no CPE)range: >= 3.0.0, < 3.0.9.1
- (no CPE)range: < 0.11.7-2.el9_4
- (no CPE)range: < 0.11.7-2.el9_4
- (no CPE)range: < 2.2.8.1-1.1
- (no CPE)range: < 2.0.8-150000.3.21.2
- (no CPE)range: < 3.0.9.1-1.1
- (no CPE)range: < 1.4.5-9.3.1
- (no CPE)range: < 2.0.8-150000.3.21.2
- (no CPE)range: < 2.0.8-150000.3.21.2
- (no CPE)range: < 2.0.8-150000.3.21.2
- (no CPE)range: < 2.0.8-150000.3.21.2
- (no CPE)range: < 1.6.13-3.22.1
- (no CPE)range: < 1.6.13-3.22.1
Patches
Vulnerability mechanics
References
11- github.com/advisories/GHSA-54rr-7fvw-6x8fghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2024-26146ghsaADVISORY
- discuss.rubyonrails.org/t/possible-denial-of-service-vulnerability-in-rack-header-parsing/84942ghsax_refsource_MISCWEB
- github.com/rack/rack/commit/30b8e39a578b25d4bdcc082c1c52c6f164b59716ghsax_refsource_MISCWEB
- github.com/rack/rack/commit/6c5d90bdcec0949f7ba06db62fb740dab394b582ghsax_refsource_MISCWEB
- github.com/rack/rack/commit/a227cd793778c7c3a827d32808058571569cda6fghsax_refsource_MISCWEB
- github.com/rack/rack/commit/e4c117749ba24a66f8ec5a08eddf68deeb425ccdghsax_refsource_MISCWEB
- github.com/rack/rack/security/advisories/GHSA-54rr-7fvw-6x8fghsax_refsource_CONFIRMWEB
- github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2024-26146.ymlghsax_refsource_MISCWEB
- lists.debian.org/debian-lts-announce/2024/04/msg00022.htmlmitre
- security.netapp.com/advisory/ntap-20240510-0006/mitre
News mentions
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