Bug 2370346 (CVE-2025-49007)

Summary: CVE-2025-49007 rack: rubygem-rack: Rack Content-Disposition Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: akostadi, amasferr, anthomas, cbartlet, crizzo, dmayorov, ehelms, ggainey, jcantril, jlledo, juwatts, jvasik, kaycoth, mhulan, mmakovy, nmoumoul, osousa, pcreech, periklis, rblanco, rchan, rojacob, smallamp, tjochec, vmugicag
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Rack. The Content-Disposition parsing component exhibits a denial of service vulnerability due to improper handling of specially crafted input, allowing a remote attacker to trigger a crash. This vulnerability is triggered by processing a malicious Content-Disposition header. Consequently, a remote attacker can cause the Rack web server interface to become unavailable.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2370398, 2370399, 2370400, 2370401    
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Description OSIDB Bzimport 2025-06-04 23:01:03 UTC 
Rack is a modular Ruby web server interface. Starting in version 3.1.0 and prior to version 3.1.16, there is a denial of service vulnerability in the Content-Disposition parsing component of Rack. This is very similar to the previous security issue CVE-2022-44571. Carefully crafted input can cause Content-Disposition header parsing in Rack to take an unexpected amount of time, possibly resulting in a denial of service attack vector. This header is used typically used in multipart parsing. Any applications that parse multipart posts using Rack (virtually all Rails applications) are impacted. Version 3.1.16 contains a patch for the vulnerability.