CVE-2026-19519

Claircore: claircore: denial of service via unchecked type assertion in rpm header parser

Published Aug 11, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
A flaw was found in claircore's RPM package scanner. Crafted RPM header data in a container layer can cause an unchecked type assertion to panic the scanner. The panic is not recovered, causing the Clair indexer process to crash, leading to a denial of service.

Remediation

Vendor Workaround

Where possible, configure the indexer to run scanner workloads in isolated processes or containers so that a single scanner panic cannot terminate the shared indexer. Alternatively, deploy multiple indexer replicas behind a load balancer to reduce the blast radius of a single-process crash.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Redhat quay 3
Vendors & Products Redhat quay 3
Type Values Removed Values Added
Description A flaw was found in claircore's RPM package scanner. Crafted RPM header data in a container layer can cause an unchecked type assertion to panic the scanner. The panic is not recovered, causing the Clair indexer process to crash, leading to a denial of service.
Title Claircore: claircore: denial of service via unchecked type assertion in rpm header parser
First Time appeared Redhat
Redhat advanced Cluster Security
Redhat quay
Weaknesses CWE-617
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
Aug 13, 2026, 2:35 AM
Reserved
Aug 11, 2026, 6:19 AM
Status
Awaiting Analysis
Published
Aug 11, 2026, 8:17 AM
Modified
Aug 14, 2026, 7:07 PM
Severity
Moderate
Public date
Aug 8, 2026, 12:00 AM