CVE-2026-73434
Gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing
CVSS Score
6.1
EPSS Score
0.1%
EPSS Percentile
4th
A flaw was found in GStreamer gst-plugins-good (avidemux). In gst_avi_demux_riff_parse_vprp(), the number of available gst_riff_vprp_video_field_desc entries is calculated by dividing the remaining buffer size by the attacker-controlled vprp->fields value, rather than by sizeof(gst_riff_vprp_video_field_desc). This can cause the parser to treat more field descriptors as available than fit in the input buffer, resulting in out-of-bounds reads. Processing a crafted AVI via playbin/decodebin can crash the application (denial of service). Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
| CWE | CWE-125 |
| Vendor | gstreamer |
| Product | gst-plugins-good |
| Published | Aug 12, 2026 |
| Last Updated | Sep 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Affected Versions
GStreamer / gst-plugins-good
0 < 1.28.6
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:55434 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:55436 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:56966 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65959 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68642 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68644 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68645 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:69232 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:70264 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:70584 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:70803 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-73434 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2514807 gitlab.freedesktop.org: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231 gstreamer.freedesktop.org: https://gstreamer.freedesktop.org/security/sa-2026-0072.html
Credits
Red Hat would like to thank Seonwook Kim for reporting this issue.