Medium severity · published Jul 20, 2026
CVE-2026-16254
Claircore: claircore: denial of service via out-of-bounds slice in claircore's apk installed-database parser
4.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Advanced Cluster Security 4 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Quay 3 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat Advanced Cluster Security 4
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-16254
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-16254
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-16254
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2502701
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