CVE Catalog

CVE-2026-86476

HighCVSS 8.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

10th percentile - higher than 10% of all known CVEs

Summary

A heap buffer overflow was found in gst-plugins-base. It can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets exceeding the actual backing memory allocation. The metadata is not range-checked during deserialization, and the frame mapping code does not verify that the declared plane geometry fits within the buffer.

Risk Assessment

A local attacker controlling the sending side of a GStreamer inter-process IPC pipeline can cause reads or writes beyond heap boundaries, leading to denial of service or potentially code execution within the affected process.

Recommendation

Update gst-plugins-base to a patched version. Restrict access to GStreamer IPC pipelines to trusted processes only.

Related vulnerabilities

Original NVD description (English source)

A flaw was found in gst-plugins-base. A heap buffer overflow can be triggered when processing video buffers whose attached GstVideoMeta metadata declares plane strides and offsets that exceed the actual backing memory allocation. The metadata is not range-checked during deserialization, and the video frame mapping code does not verify that the declared plane geometry fits within the buffer before allowing consumers to read or write video data. A local attacker who controls the sending side of a GStreamer inter-process IPC pipeline can deliver a crafted buffer carrying fabricated strides, causing the receiving process to read or write beyond heap boundaries. Successful exploitation can cause a denial of service or potentially allow code execution within the affected process.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS