Medium
libmodulemd — security advisory
A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.
- Products
- libmodulemd
- Affected versions
- 2.14.0-3, 2.15.0-1, 2.15.2-1, 2.15.2-2, 2.15.2-3, 2.15.2-4, 2.15.3-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-92822
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:59 UTC · Revision 1
Source evidence
A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.
osv:DEBIAN-CVE-2026-92822
libmodulemd
Fixed versions: Not specified
libmodulemd
Fixed versions: Not specified
libmodulemd
Fixed versions: Not specified
Complete source record
{
"id": "617a41003b6a79f06462fa9bd54f0f34ff49281ab707ff9d0a03d030ca721073",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-92822",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-92822",
"summary": "A flaw was found in libmodulemd. When parsing module metadata, the xmd field is converted into nested GVariant values through recursive YAML mapping and sequence helpers without a recursion-depth or node-count limit. An attacker who can supply crafted modulemd YAML with deeply nested xmd content can cause stack exhaustion or excessive resource consumption, resulting in a denial of service.",
"evidence": "osv:DEBIAN-CVE-2026-92822",
"products": [
{
"name": {
"value": "libmodulemd",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.14.0-3",
"evidence": "/affected/0/versions"
},
{
"value": "2.15.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.15.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.15.2-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.15.2-3",
"evidence": "/affected/0/versions"
},
{
"value": "2.15.2-4",
"evidence": "/affected/0/versions"
},
{
"value": "2.15.3-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libmodulemd",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.15.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.15.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.15.2-2",
"evidence": "/affected/1/versions"
},
{
"value": "2.15.2-3",
"evidence": "/affected/1/versions"
},
{
"value": "2.15.2-4",
"evidence": "/affected/1/versions"
},
{
"value": "2.15.3-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libmodulemd",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.15.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.15.2-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.15.2-2",
"evidence": "/affected/2/versions"
},
{
"value": "2.15.2-3",
"evidence": "/affected/2/versions"
},
{
"value": "2.15.2-4",
"evidence": "/affected/2/versions"
},
{
"value": "2.15.3-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2026-92822",
"aliases": [
"DEBIAN-CVE-2026-92822"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libmodulemd",
"purl": "pkg:deb/debian/libmodulemd?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.14.0-3",
"2.15.0-1",
"2.15.2-1",
"2.15.2-2",
"2.15.2-3",
"2.15.2-4",
"2.15.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92822.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libmodulemd",
"purl": "pkg:deb/debian/libmodulemd?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.15.0-1",
"2.15.2-1",
"2.15.2-2",
"2.15.2-3",
"2.15.2-4",
"2.15.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92822.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libmodulemd",
"purl": "pkg:deb/debian/libmodulemd?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.15.0-1",
"2.15.2-1",
"2.15.2-2",
"2.15.2-3",
"2.15.2-4",
"2.15.3-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92822.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-31T09:47:23.378855071Z",
"provider": "osv",
"upstream": [
"CVE-2026-92822"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-92822"
]
},
"related_cves": [
{
"value": "CVE-2026-92822",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 424312,
"published_at": "2026-10-21T04:18:11.98+00:00"
}