CVE-2026-53701 Details
Description
An out-of-bounds write vulnerability was found in GStreamer's H.266/VVC PPS picture partition parser in gst-plugins-bad. In the multi-slice-in-tile processing of gst_h266_parser_parse_picture_partition() (gsth266parser.c), the loop iterates without checking that the slice index stays within bounds, writing past three fixed-size arrays (slice_height_in_ctus, slice_top_left_ctu_x, slice_top_left_ctu_y) in the GstH266PPS structure. While the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the code permits larger writes across multiple iterations. A crafted H.266/VVC media file can trigger this vulnerability.
A vulnerability allowing out-of-bounds write has been identified in GStreamer's H.266/VVC PPS picture partition parser, specifically within the gst-plugins-bad component, available in GStreamer versions 1.26 and later. The issue arises in the multi-slice-in-tile processing of the gst_h266_parser_parse_picture_partition() function, where the loop iterates without proper bounds checking on the slice index. This oversight leads to writing past the limits of three fixed-size arrays in the GstH266PPS structure. Although the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the vulnerability allows for larger writes across multiple iterations. A crafted H.266/VVC media file can exploit this flaw.
Users can upgrade to GStreamer version 1.28.3 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-53701 | [email protected] | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2487611 | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | [email protected] |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 11, 2026 | New CVE Received | [email protected] |