CVE-2024-26146GHSA-54RR-7FVW-6X8F
Possible Denial of Service Vulnerability in Rack Header Parsing
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 3.0.9.1, 2.2.8.1, 2.1.4.4, 2.0.9.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- rack rack
From 3.0.0 · fixed in 3.0.9.1; From 2.2.0 · fixed in 2.2.8.1; From 2.1.0 · fixed in 2.1.4.4; fixed in 2.0.9.4
- rackRubyGems
From 3.0.0 · fixed in 3.0.9.1
- rackRubyGems
From 2.2.0 · fixed in 2.2.8.1
- rackRubyGems
From 2.1.0 · fixed in 2.1.4.4
- rackRubyGems
fixed in 2.0.9.4