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Vulnerability · Published Aug 11, 2026 · Assigned by redhat

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

Medium 4.3

In plain English

A medium-severity security flaw in Red Hat Advanced Cluster Security 4 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 68.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 (as reported)

VendorProductVersions
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Advanced Cluster Security 4 see references
Red Hat Red Hat Quay 3 see references
Red Hat Red Hat Quay 3 see references

Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References