What is CVE-2026-19519?

CVE-2026-19519 is a medium-severity vulnerability in Red Hat Advanced Cluster Security 4, classified under Reachable Assertion. CVSS score: 4.3/10. Published 2026-08-11.

How severe is CVE-2026-19519?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Red Hat Advanced Cluster Security 4

CVE-2026-19519

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.

Published 2026-08-11 · last modified 2026-08-14.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (28.5th percentile), scored 2026-09-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

access.redhat.com/security/cve/CVE-2026-19519 (vdb-entry)
bugzilla.redhat.com/show_bug.cgi (issue-tracking)

Frequently asked questions

What is CVE-2026-19519?: CVE-2026-19519 is a medium-severity vulnerability in Red Hat Advanced Cluster Security 4, classified under Reachable Assertion. CVSS score: 4.3/10. Published 2026-08-11.
How severe is CVE-2026-19519?: Medium severity. CVSS v3 base score is 4.3 out of 10.