Out-of-Bounds Access in Claircore's APK Package Scanner Affects Red Hat Products
CVE-2026-16254

4.3MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Advanced Cluster Security 4
Red Hat Quay 3
Vendor
CVE Published:
20 July 2026

What is CVE-2026-16254?

A vulnerability has been identified in Claircore's APK package scanner that arises from malformed package-database data within a container layer. This flaw can lead to an out-of-bounds access situation, potentially causing the scanner to panic. Should this panic be unhandled, it may result in a crash of the Clair indexer process, ultimately leading to a denial of service. Users of Claircore are advised to monitor for updates and ensure their systems are fortified against this vulnerability.

References

https://access.redhat.com/security/cve/CVE-2026-16254
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2502701
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Arpit Jain for reporting this issue.
.