Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-92823
A flaw was found in libmodulemd. In builds with rpmio support enabled, compressed modulemd YAML is decompressed through a custom read handler that does not enforce a cumulative decompressed-size limit before parsing. An attacker who can supply a highly compressible compressed YAML file can cause excessive CPU and memory consumption, resulting in a denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-92823 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
Frequently asked questions
- What is CVE-2026-92823?
- CVE-2026-92823 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 6.2/10. Published 2026-10-21.
- How severe is CVE-2026-92823?
- Medium severity. CVSS v3 base score is 6.2 out of 10.