Bug 2565093

Summary: CVE-2026-119566 apptainer: Prometheus: Information disclosure via HTTP redirects in remote write requests [epel-9]
Product: [Fedora] Fedora EPEL Reporter: Ronit Dey <rdey>
Component: apptainerAssignee: Dave Dykstra <dwd>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: epel9CC: dwd, go-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["25196e4a-5954-423a-a8be-c008c0f98185"]}
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Clone Of: Environment:
Last Closed: 2026-11-03 15:40:47 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2563959    

Description Ronit Dey 2026-11-02 10:43:09 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Prometheus through 3.15.1 contains a credential leak vulnerability that allows attackers to capture Azure AD or Google IAM bearer tokens by redirecting remote_write requests to another host. Attackers controlling the remote-write endpoint or a redirecting server can return a 3xx to their host and replay the token, for example to write metrics to the victim's backend.
Comment 1 Dave Dykstra 2026-11-03 15:40:47 UTC 
Apptainer uses prometheus libraries only indirectly and only for testing.