CVE-2026-15812

Kronosnet: kronosnet: access control list bypass via link id spoofing on unencrypted dynamic links

State
Published
Severity
4.8 Medium
Published
Jul 21, 2026
Updated
Aug 21, 2026
Reserved
Jul 15, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.14.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Lredhat

Weaknesses

  • CWE-290 Authentication Bypass by Spoofing

Affected Products

ProductVersions
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 8Red Hat
      Red Hat Enterprise Linux 9Red Hat
        Red Hat OpenShift Container Platform 4Red Hat

          References

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