CVE-2026-17072Low· 3.3▾ SunlitA flaw was found in GStreamer's gst-plugins-good. A heap-based out-of-bounds read of 4 bytes can occur when parsing FLAC audio stream headers embedded in a Matroska or WebM container file. The vulnerability is triggered by a boundary che…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 18.2 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
A flaw was found in GStreamer's gst-plugins-good. A heap-based out-of-bounds read of 4 bytes can occur when parsing FLAC audio stream headers embedded in a Matroska or WebM container file. The vulnerability is triggered by a boundary check that does not account for the full size of the data being copied, allowing a small read past the end of the allocated buffer. An attacker could exploit this by crafting a malicious Matroska or WebM file and tricking a user into opening it, potentially leaking a small amount of adjacent heap memory.
gstreamer1-plugins-good (all versions)gstreamer-plugins-good (all versions)gstreamer1-plugins-good (all versions)gstreamer-plugins-good (all versions)gstreamer1-plugins-good (all versions)gstreamer1-plugins-good (all versions)Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
The matroska demuxer plugin can be disabled to prevent this vulnerability from being triggered:
Note: Disabling the matroska plugin will prevent playback of all MKV and WebM files.
Connected by shared product, vendor, weakness, or advisory.
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