Bug 2569128 (CVE-2026-125704)

Summary: CVE-2026-125704 gstreamer: gstreamer: Use-after-free in GStreamer core buffer value deserialization
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: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A use-after-free flaw was found in GStreamer core buffer value deserialization. When crafted serialized buffer data contains an invalid character, an error path frees a mapped buffer before unmapping it. An application that parses untrusted caps or structure data could crash; a network-facing GStreamer Data Protocol receiver can process such data without user interaction. Further impact has not been established.
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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: 2569389    
Bug Blocks:    

Description OSIDB Bzimport 2026-11-09 12:56:09 UTC 
GStreamer-SA-2026-0028: Use-after-free in GStreamer core buffer value deserialization. Advisory details and affected version range were not available from the page fetch; the OSIM record is based on the published advisory title and date.