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Medium 4.3Published Jul 20, 2026

CVE-2026-16254Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk installed-database parser

Updated under an hour ago ()

Does this affect you?

It affects Red Hat Advanced Cluster Security 4 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A flaw was found in claircore's apk package scanner. Malformed package-database data in a container layer can cause an out-of-bounds access that panics the scanner. If that panic is not recovered, the Clair indexer process can crash, leading to a denial of service.

CVSS
4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-125
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
redhat
NVD analysis
Awaiting Analysis
Record last updated
Jul 20, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Red Hat Red Hat Advanced Cluster Security 4
redhat:advanced_cluster_security
4
CNA record
3
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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