What is CVE-2026-16254?

CVE-2026-16254 is a medium-severity vulnerability in Red Hat Advanced Cluster Security 4, classified under Out-of-bounds Read. CVSS score: 4.3/10. Published 2026-07-20.

How severe is CVE-2026-16254?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Out-of-bounds Read in Red Hat Advanced Cluster Security 4

CVE-2026-16254

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, leadi…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Affected products

Red Hat Advanced Cluster Security 4
Red Hat Quay 3

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-16254?: CVE-2026-16254 is a medium-severity vulnerability in Red Hat Advanced Cluster Security 4, classified under Out-of-bounds Read. CVSS score: 4.3/10. Published 2026-07-20.
How severe is CVE-2026-16254?: Medium severity. CVSS v3 base score is 4.3 out of 10.