CVE-2026-86476 Gstreamer1-plugins-base: gst-plugins-base: heap buffer overflow via unvalidated gstvideometa plane extents in gst_video_frame_map_id and video_meta_deserialize

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...

CVE-2026-86476

A heap buffer overflow exists in gst-plugins-base within the libgstvideo component. The vulnerability is caused by a failure to range-check GstVideoMeta metadata during deserialization, allowing plane strides and offsets to exceed the actual backing memory allocation. A local attacker controlling...