PT-2026-61544 · Red Hat+1 · Red Hat Advanced Cluster Security 4+1

CVE-2026-16254 · Published 2026-07-20 · Updated 2026-07-20

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions claircore (affected versions not specified) Red Hat Advanced Cluster Security 4 (affected versions not specified)

Description A flaw in the apk package scanner allows an out-of-bounds access when processing malformed package-database data in a container layer. This can cause the scanner to panic, which may lead to a crash of the Clair indexer process and result in a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-16254

Affected Products

Red Hat Advanced Cluster Security 4

Claircore

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-16254 · Security Note
• https://twitter.com/VulmonFeeds/status/2079271227261112616 · Twitter Post
• https://access.redhat.com/security/cve/CVE-2026-16254 · Note
• https://twitter.com/vulnipulse/status/2079257160702390592 · Twitter Post
• https://bugzilla.redhat.com/show_bug.cgi?id=2502701 · Note