Skip to main content
VulnerabilityPublished Updated

CVE-2026-19519: Red Hat Advanced Cluster Security 4 · Reachable Assertion

Affects Red Hat Advanced Cluster Security 4Source CVE Database V5

0
Compare

Not known to be exploited · CVSS 4.3 Medium.

Data as of 9 Nov 2026, 23:24 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat Advanced Cluster Security 4Affected–Fixed in–
Red HatRed Hat Quay 3Affected–Fixed in–

AI-suggested

Red Hat advises configuring the indexer to run scanner workloads in isolated processes or containers to prevent a single scanner panic from terminating the shared indexer. Alternatively, deploying multiple indexer replicas behind a load balancer can reduce the impact of a single process crash.

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.

References

Community reviews

Loading reviews…