CVE-2026-16254 Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk installed-database parser
Malformed APK database data in a container layer can crash the Clair indexer process, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16254?
CVE-2026-16254 is a medium-severity denial of service vulnerability in Red Hat Advanced Cluster Security 4, published on 20 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in claircore's apk package scanner. Malformed package-database data in a container layer can cause an out-of-bounds access that panics the scanner. If that panic is not recovered, the Clair indexer process can crash, leading to a denial of service.
Weakness: CWE-125
Which versions are affected by CVE-2026-16254?
How do I fix CVE-2026-16254?
No fix has been published for CVE-2026-16254 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-16254 being exploited?
There is no known exploitation of CVE-2026-16254 in the wild and no public exploit code.
Sources
Also known as GHSA-985f-wwqg-mmx8.