AI Threat AlertCVE-2026-92822
MEDIUMA 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...
Full CISO analysis pending enrichment.
What systems are affected?
How severe is it?
What is the attack surface?
What should I do?
No patch available
Monitor for updates. Consider compensating controls or temporary mitigations.
Which compliance frameworks are affected?
Compliance analysis pending. Sign in for full compliance mapping when available.
Frequently Asked Questions
What is CVE-2026-92822?
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.
Is CVE-2026-92822 actively exploited?
No confirmed active exploitation of CVE-2026-92822 has been reported, but organizations should still patch proactively.
How to fix CVE-2026-92822?
No patch is currently available. Monitor vendor advisories for updates.
What is the CVSS score for CVE-2026-92822?
CVE-2026-92822 has a CVSS v3.1 base score of 6.2 (MEDIUM).
What are the technical details?
Original 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.
Weaknesses (CWE)
CWE-674 — Uncontrolled Recursion: The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
- [Implementation] Ensure that an end condition will be reached under all logic conditions. The end condition may include checking against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.
- [Implementation] Increase the stack size.
Source: MITRE CWE corpus.
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
- access.redhat.com/security/cve/CVE-2026-92822vdb-entryx_refsource_REDHAT
- bugzilla.redhat.com/show_bug.cgiissue-trackingx_refsource_REDHAT
- github.com/advisories/GHSA-85r9-7wj5-x6x5
- github.com/fedora-modularity/libmodulemd/pull/645
Timeline
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