CVE-2026-16254

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

Published Jul 20, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

Limit image push/indexing to trusted sources until a fix is available. Where possible, run indexing so a single scanner failure cannot disrupt shared indexing capacity.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Redhat quay 3
Vendors & Products Redhat quay 3
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk installed-database parser
First Time appeared Redhat
Redhat advanced Cluster Security
Redhat quay
Weaknesses CWE-125
CPEs cpe:/a:redhat:advanced_cluster_security:4
cpe:/a:redhat:quay:3
Vendors & Products Redhat
Redhat advanced Cluster Security
Redhat quay
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Jul 20, 2026, 1:03 PM
Reserved
Jul 20, 2026, 8:01 AM
Status
Awaiting Analysis
Published
Jul 20, 2026, 12:17 PM
Modified
Jul 21, 2026, 6:31 PM
Severity
Moderate
Public date
Jul 20, 2026, 7:58 AM