MediumFix available
gst-plugins-bad1.0 — security advisory
A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.
- Products
- gst-plugins-bad1.0
- Affected versions
- 1.26.10-1, 1.26.10-2, 1.26.2-3, 1.26.2-3+deb13u1, 1.26.2-3+deb13u2, 1.26.3-1, 1.26.4-1, 1.26.5-1, 1.26.5-2, 1.26.6-1, 1.26.6-2, 1.26.6-3, 1.26.6-4, 1.26.6-5, 1.26.7-1, 1.26.7-2, 1.26.8-1, 1.26.9-1, 1.27.1-1, 1.27.2-1, 1.27.50-1, 1.27.90-1, 1.27.90-2, 1.27.90-3, 1.28.0-1, 1.28.1-1, 1.28.1-2, 1.28.1-3, 1.28.2-1, 1.28.2-2, 1.28.3-1, 1.28.4-1
- Fixed versions
- 1.26.2-3+deb13u3, 1.28.5-1
- CVEs
- CVE-2026-12891
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 19:07 UTC · Revision 1
Source evidence
A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.
osv:DEBIAN-CVE-2026-12891
gst-plugins-bad1.0
Fixed versions: 1.26.2-3+deb13u3
gst-plugins-bad1.0
Fixed versions: 1.28.5-1
Complete source record
{
"id": "bb9caeecffeeda3be0670eedd164360bd099f186467b86b2dd958a1090667924",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-12891",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-12891",
"summary": "A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.",
"evidence": "osv:DEBIAN-CVE-2026-12891",
"products": [
{
"name": {
"value": "gst-plugins-bad1.0",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.26.2-3+deb13u3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1.26.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "1.26.2-3+deb13u1",
"evidence": "/affected/0/versions"
},
{
"value": "1.26.2-3+deb13u2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "gst-plugins-bad1.0",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.28.5-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": [
{
"value": "1.26.10-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.10-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.2-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.5-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.6-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.6-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.6-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.6-4",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.6-5",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.7-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.7-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.8-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.26.9-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.50-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.90-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.90-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.27.90-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.1-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.1-3",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.2-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.28.4-1",
"evidence": "/affected/1/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-12891",
"aliases": [
"DEBIAN-CVE-2026-12891"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.26.2-3+deb13u3"
}
]
}
],
"package": {
"name": "gst-plugins-bad1.0",
"purl": "pkg:deb/debian/gst-plugins-bad1.0?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.26.2-3",
"1.26.2-3+deb13u1",
"1.26.2-3+deb13u2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12891.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.28.5-1"
}
]
}
],
"package": {
"name": "gst-plugins-bad1.0",
"purl": "pkg:deb/debian/gst-plugins-bad1.0?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.26.10-1",
"1.26.10-2",
"1.26.2-3",
"1.26.3-1",
"1.26.4-1",
"1.26.5-1",
"1.26.5-2",
"1.26.6-1",
"1.26.6-2",
"1.26.6-3",
"1.26.6-4",
"1.26.6-5",
"1.26.7-1",
"1.26.7-2",
"1.26.8-1",
"1.26.9-1",
"1.27.1-1",
"1.27.2-1",
"1.27.50-1",
"1.27.90-1",
"1.27.90-2",
"1.27.90-3",
"1.28.0-1",
"1.28.1-1",
"1.28.1-2",
"1.28.1-3",
"1.28.2-1",
"1.28.2-2",
"1.28.3-1",
"1.28.4-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12891.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-15T19:00:10.323293181Z",
"provider": "osv",
"upstream": [
"CVE-2026-12891"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-12891"
]
},
"related_cves": [
{
"value": "CVE-2026-12891",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 335648,
"published_at": "2026-06-23T21:16:54.947+00:00"
}