CVE record · CVE-2026-16254

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

CVSS 4.3 MediumEPSS 0.0037 · 31st percentile

Published by the CVE Program (CNA: redhat) at 20 Jul 2026, 10:42 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-main-rhel8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-main-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-operator-bundle https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-rhel8-operator https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-rhel9-operator https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-roxctl-rhel8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-roxctl-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-scanner-v4-rhel8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Advanced Cluster Security 4 Package name: advanced-cluster-security/rhacs-scanner-v4-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Quay 3 Package name: quay/clair-rhel8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Quay 3 Package name: quay/clair-rhel9 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected

Identifiers: CVE-2026-16254
CNA: redhat
Weakness (CWE): CWE-125
Tags: Red Hat Advanced Cluster Security 4
Red Hat Quay 3
Memory corruption
Published: 20 Jul 2026
Updated: 20 Jul 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.3	Medium	3.1	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0037, the 31st percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 20 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

access.redhat.com/security/cve/CVE-2026-16254 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2502701 issue-trackingredhat

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.