RHSA-2026:49508
Vulnerability from csaf_opensuse - Published: 2026-08-03 02:28 - Updated: 2026-09-08 21:42Summary
Red Hat Security Advisory: gstreamer1-plugins-good security update
Severity
Important
Notes
Topic: An update for gstreamer1-plugins-good is now available for Red Hat Enterprise Linux 10.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.
Security Fix(es):
* gstreamer: GStreamer: Arbitrary code execution via stack-based buffer overflow in qtdemux (CVE-2026-5056)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A stack-based buffer overflow in GStreamer's qtdemux component allows attackers to execute arbitrary code via specially crafted input. This occurs due to insufficient data length validation when parsing UncompressedFrameConfigBox structures.
7.8 (High)
Affected products
Fixed
25 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-0:1.26.7-2.el10_2.2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-0:1.26.7-2.el10_2.2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-0:1.26.7-2.el10_2.2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-0:1.26.7-2.el10_2.2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-0:1.26.7-2.el10_2.2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.2.s390x | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-10.2.Z:gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
11 references
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:49508"
},
{
"category": "workaround",
"details": "Do not open, preview, or auto-index untrusted MOV/MP4 files with GStreamer-based apps; leave RHEL memory protections and SELinux enabled",
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Important"
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"title": "gstreamer-plugins-good: GStreamer: Arbitrary code execution via stack-based buffer overflow in qtdemux"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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