Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion
Priority LOW 29CWE-617Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 10 fixed, 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-617.
Summary
A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote attacker could trick a user into opening a specially crafted AV1 media file, triggering an assertion abort and causing the application to crash.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00386 32nd percentileScored 2026-11-07
Fix Partial Red Hat: 6 advisoriesRed Hat: 10 fixed, 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | 1.26.7-2.el10_2.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | 1.24.11-3.el10_0.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 1.22.12-7.el9_8.1 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | 1.18.4-9.el9_2.3 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | 1.22.1-6.el9_4.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | 1.22.12-5.el9_6.4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
- Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in 1.26.7-2.el10_2.4 Patch available CNA
- Red Hat Enterprise Linux 10.0 Extended Update Support VendorRed Hat Affected — Fixed in 1.24.11-3.el10_0.4 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 1.22.12-7.el9_8.1 Patch available CNA
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 1.18.4-9.el9_2.3 Patch available CNA
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 1.22.1-6.el9_4.4 Patch available CNA
- Red Hat Enterprise Linux 9.6 Extended Update Support VendorRed Hat Affected — Fixed in 1.22.12-5.el9_6.4 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
CPE names CNA · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:enterprise_linux:10.2 | 10.2 | — | Red Hat |
| cpe:/o:redhat:enterprise_linux_eus:10.0 | 10.0 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::crb | 9 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.2::appstream | 9.2 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.4::appstream | 9.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.6::appstream | 9.6 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.6::crb | 9.6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
- cpe:/o:redhat:enterprise_linux:10.2 Versions 10.2 — ·Red Hat
- cpe:/o:redhat:enterprise_linux_eus:10.0 Versions 10.0 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::crb Versions 9 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.2::appstream Versions 9.2 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.4::appstream Versions 9.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.6::appstream Versions 9.6 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.6::crb Versions 9.6 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
Remediation
Red Hat 6 advisories
- RHSA-2026:47717 Released 2026-07-29 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream EUS (v. 10.0) gstreamer1-plugins-bad-free-1.24.11-3.el10_0.4, gstreamer1-plugins-bad-free-libs-1.24.11-3.el10_0.4
- Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) gstreamer1-plugins-bad-free-devel-1.24.11-3.el10_0.4
- RHSA-2026:47071 Released 2026-07-28 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream E4S (v.9.4) gstreamer1-plugins-bad-free-1.22.1-6.el9_4.4
- RHSA-2026:47070 Released 2026-07-28 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat CodeReady Linux Builder EUS (v.9.6) gstreamer1-plugins-bad-free-devel-1.22.12-5.el9_6.4
- Red Hat Enterprise Linux AppStream EUS (v.9.6) gstreamer1-plugins-bad-free-1.22.12-5.el9_6.4, gstreamer1-plugins-bad-free-libs-1.22.12-5.el9_6.4
Show 3 more Red Hat advisories
- RHSA-2026:47069 Released 2026-07-28 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) gstreamer1-plugins-bad-free-1.18.4-9.el9_2.3
- RHSA-2026:36834 Released 2026-07-08 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream (v. 9) gstreamer1-plugins-bad-free-1.22.12-7.el9_8.1, gstreamer1-plugins-bad-free-libs-1.22.12-7.el9_8.1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) gstreamer1-plugins-bad-free-devel-1.22.12-7.el9_8.1
- RHSA-2026:36749 Released 2026-07-08 · Red Hat rating Importantgstreamer1-plugins-bad-free security update
- Red Hat Enterprise Linux AppStream (v. 10) gstreamer1-plugins-bad-free-1.26.7-2.el10_2.4, gstreamer1-plugins-bad-free-libs-1.26.7-2.el10_2.4
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) gstreamer1-plugins-bad-free-devel-1.26.7-2.el10_2.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 7 more products — RHSA-2026:36749
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-37840 Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfbPriority MEDIUM 41
- TI-2026-37842 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handlingPriority LOW 31
- TI-2026-37839 Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoderPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 7 more products — RHSA-2026:36834
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-37840 Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfbPriority MEDIUM 41
- TI-2026-37842 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handlingPriority LOW 31
- TI-2026-37839 Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoderPriority LOW 31
Show 4 more groups
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 7 more products — RHSA-2026:47070
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-37840 Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfbPriority MEDIUM 41
- TI-2026-37842 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handlingPriority LOW 31
- TI-2026-37839 Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoderPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 7 more products — RHSA-2026:47071
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-37840 Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfbPriority MEDIUM 41
- TI-2026-37842 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handlingPriority LOW 31
- TI-2026-37839 Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoderPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 7 more products — RHSA-2026:47717
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2026-37840 Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfbPriority MEDIUM 41
- TI-2026-37842 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handlingPriority LOW 31
- TI-2026-37839 Gstreamer1-plugins-bad-free: gstreamer: out-of-bounds read via jpeg segment length validation in va decoderPriority LOW 31
- Advisory ·
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and 6 more products — RHSA-2026:47069
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-37840 Gstreamer1-plugins-bad-free: gstreamer: heap buffer overflow via crafted vnc server rectangle in librfbPriority MEDIUM 41
- TI-2026-37842 Gstreamer1-plugins-bad-free: gstreamer: signed integer overflow in vmnc decoder cursor payload handlingPriority LOW 31
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat CodeReady Linux Builder EUS (v.9.6) | Fixed | RHSA-2026:47070 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:36749 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:36834 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2026:47069 |
| Red Hat Enterprise Linux AppStream E4S (v.9.4) | Fixed | RHSA-2026:47071 |
| Red Hat Enterprise Linux AppStream EUS (v. 10.0) | Fixed | RHSA-2026:47717 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2026:47070 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:36749 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2026:36834 |
| Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) | Fixed | RHSA-2026:47717 |
Not affected: 2 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-52718
- 2026-10-03 Alias added: GHSA-4cjw-rphc-c5v6
- 2026-10-25 EPSS moved to the below the 50th percentile
References
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Sources
- CVE-2026-52718 · CVE Program
- CVE-2026-52718 · NVD
- FIRST EPSS
- GHSA-4cjw-rphc-c5v6 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-52718 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences