Bug 2531563 (CVE-2026-68006)

Summary: CVE-2026-68006 puma: Puma: HTTP Request Smuggling via Underscore Header Name Confusion
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: anthomas, ehelms, eshamard, ggainey, jpasqual, juwatts, jvasik, kaycoth, mdellweg, mhulan, nmoumoul, osousa, pcreech, rblanco, rchan, rhel-process-autobot, smallamp, tmalecek, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in Puma. An attacker could exploit a vulnerability within the HTTP parser component to execute arbitrary code. This could allow the attacker to take control of the affected system.
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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: 2548228    
Bug Blocks:    

Description OSIDB Bzimport 2026-09-10 17:31:32 UTC
An issue in Puma v.5.0.0 and before v.8.0.3 allows an attacker to execute arbitrary code via the ext/puma_http11/http11_parser.rl file