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Red HatCVE-2026-15812

Red Hat Enterprise Linux 10: improper access control

Medium4.8CVE-2026-15812 · Published Jul 21, 2026 · updated Aug 21, 2026

A vulnerability was found in the internal Access Control List (ACL) subsystem of kronosnet (Version affected: <= 1.34). When the framework is explicitly configured to manage dynamic links (accepting network traffic from any IP address) without network payload encryption, the validation architecture implicitly trusts the link ID provided within incoming data packets. A remote, unauthenticated attacker can exploit this lack of validation by spoofing a legitimate link ID inside crafted network frames. This allows the attacker to fully bypass the ACL framework and inject arbitrary data packets into the application layer, potentially leading to data corruption or service instabilities.

Red Hat advisory

Affected versions

PackageAffectedFixed in
Red Hat Enterprise Linux 10
Product
all versionsNo fix yet
Red Hat Enterprise Linux 8
Product
all versionsNo fix yet
Red Hat Enterprise Linux 9
Product
all versionsNo fix yet
Red Hat OpenShift Container Platform 4
Product
all versionsNo fix yet
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-290

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