Bug 2526342

Summary: CVE-2026-26449 python-stomper: Stomper: Denial of Service via missing destination header in SEND frame [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Joel Chamberlain <jochambe>
Component: python-stomperAssignee: Fedora Infrastructure SIG <infra-sig>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: epel10CC: gui1ty, infra-sig, rbean
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["df15715a-c305-47e5-9951-96f497d81a2d"]}
Fixed In Version: Doc Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2524655    

Description Joel Chamberlain 2026-08-31 15:19:39 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.

In Stomper 5e2741e when a client sends a SEND frame missing the destination header field, the server triggers a null pointer dereference (or access to invalid memory) while processing the frame, causing the process to crash.