Bug 2567324

Summary: CVE-2026-120955 mongo-c-driver: mongo-c-driver: Denial of Service via unchecked error conditions in GridFS [fedora-all]
Product: [Fedora] Fedora Reporter: Oleg Sushchenko <osushche>
Component: mongo-c-driverAssignee: Remi Collet <fedora>
Status: MODIFIED --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: fedora
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["64ada6b7-be87-476f-bcc6-33ae69eddd11"]}
Fixed In Version: Doc Type: ---
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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:    
Bug Blocks: 2566142    

Description Oleg Sushchenko 2026-11-05 14:42:12 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.

The GridFS file download API in the MongoDB C Driver does not check the result of an internal operation under certain error conditions during file retrieval. This can cause the process to terminate when stream operations continue. A user who can influence file download parameters can trigger this condition, which may result in service unavailability for applications using the affected API.
Comment 1 Fedora Update System 2026-11-06 06:03:16 UTC 
FEDORA-2026-be6a432dc3 (mongo-c-driver-1.30.15-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-be6a432dc3
Comment 2 Fedora Update System 2026-11-06 06:03:18 UTC 
FEDORA-2026-43d95b04a7 (mongo-c-driver-1.30.15-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-43d95b04a7
Comment 3 Fedora Update System 2026-11-06 06:03:25 UTC 
FEDORA-2026-4701fdc782 (mongo-c-driver-2.5.8-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-4701fdc782