Buffer over-read in GStreamer gst-plugins-good isomp4 plugin
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-126 and the CVSS impact.
Summary
GStreamer gst-plugins-good before 1.28.2 is affected. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer (CWE-126). An attacker can disclose heap memory contents.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer, allowing an attacker to disclose heap memory contents.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Update GStreamer gst-plugins-good to 1.28.2. Red Hat lists Red Hat Enterprise Linux 7, 8, 9 and 10 as affected, with no fix plan available.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-16 Threatist record created from CVE-2026-46471
- 2026-10-16 Alias added: GHSA-5vvw-9383-fwx7
- 2026-10-18 Affected versions changed · Red Hat
- 2026-10-18 CVSS score added · Red Hat
- 2026-10-19 CVSS score added · CISA ADP
- 2026-10-19 Weakness changed · CISA ADP
- 2026-10-19 CISA SSVC decision points changed
- 2026-10-19 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-46471 · CVE Program
- CVE-2026-46471 · NVD
- FIRST EPSS
- GHSA-5vvw-9383-fwx7 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-46471 · 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