Bug 2554180 (CVE-2026-46471)

Summary: CVE-2026-46471 gstreamer1-plugins-good: gstreamer1-plugins-good: information disclosure via out-of-bounds read during MP4 parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
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 flaw was found in gstreamer1-plugins-good. An out-of-bounds read vulnerability exists in the isomp4 plugin when parsing custom metadata in MP4 files. By tricking a user or service into processing a specially crafted MP4 file, a remote attacker could cause the application to read past the end of an allocated heap buffer, resulting in information disclosure of sensitive memory contents.
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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: 2555425, 2555426    
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Description OSIDB Bzimport 2026-10-16 16:03:38 UTC 
An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer, allowing an attacker to disclose heap memory contents.