Bug 2516146 (CVE-2026-74246)

Summary: CVE-2026-74246 quay: Local file inclusion via file:// scheme in Quay custom build trigger
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: aruklets, doconnor, security-response-team
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Red Hat Quay's custom build trigger handler. This vulnerability allows a user with organization repository administrative privileges and the FEATURE_BUILD_SUPPORT enabled to read arbitrary files on the build worker. This is possible due to insufficient validation of the build source configuration, which permits the use of a file:// Uniform Resource Identifier (URI) scheme. Exploiting this flaw can lead to unauthorized information disclosure.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Deadline: 2026-11-12   

Description OSIDB Bzimport 2026-08-14 19:51:47 UTC 
A flaw was found in Red Hat Quay's custom build trigger handler. The buildtrigger/customhandler.py module passes config.build_source as git_url with no SSRF or scheme validation. This accepts the file:// URI scheme, enabling local file read via git clone on the build worker. A user with FEATURE_BUILD_SUPPORT enabled and organization repository admin privileges can read arbitrary files accessible to the build worker process. This is a distinct code path from CVE-2026-16910 (webhook/Slack notification SSRF) and is not covered by the existing CVE.