Medium [CVE-2026-19519] denial of service via unchecked type assertion in rpm header parser
This medium-severity Red Hat Linux advisory covers CVE-2026-19519 affecting Red Hat Advanced Cluster Security 4, Red Hat Quay 3.
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Summary
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 named by the advisory: Red Hat Advanced Cluster Security 4; Red Hat Quay 3.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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