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.
History

Wed, 21 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 21 Oct 2026 03:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Libmodulemd: libmodulemd: unbounded recursion when parsing nested xmd yaml
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Weaknesses CWE-674
CPEs cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-10-21T03:18:37.973Z

Updated: 2026-10-21T20:42:49.742Z

Reserved: 2026-09-16T20:30:35.109Z

Link: CVE-2026-92822

cve-icon Vulnrichment

Updated: 2026-10-21T20:42:26.033Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-21T04:18:11.980

Modified: 2026-10-22T15:25:35.333

Link: CVE-2026-92822

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-21T03:03:49Z

Links: CVE-2026-92822 - Bugzilla