CVE-2026-19519: Claircore: claircore: denial of service via unchecked type assertion in rpm header parser

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-08-14
Weakness: CWE-617

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.

Affected products

Red Hat Quay 3: all versions
Red Hat Advanced Cluster Security 4: all versions

References

https://access.redhat.com/security/cve/CVE-2026-19519
https://bugzilla.redhat.com/show_bug.cgi?id=2513781

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