CVE-2026-15812 Red Hat CVE debrief

Who should care

Users of kronosnet version 1.34 or earlier who have configured the framework to manage dynamic links without network payload encryption should be aware of this vulnerability. They should verify their version and configuration to determine if they are affected and take necessary steps to mitigate the vulnerability.

Technical summary

The vulnerability allows a remote, unauthenticated attacker to spoof a legitimate link ID inside crafted network frames, bypassing the ACL framework and potentially leading to data corruption or service instabilities in kronosnet version 1.34 or earlier. This occurs when the framework is explicitly configured to manage dynamic links without network payload encryption. Affected product deployments should verify their version and configuration to determine if they are affected and take necessary steps to mitigate the vulnerability, including implementing network payload encryption, restricting dynamic link management to trusted IP addresses, and monitoring for suspicious network activity.

Defensive priority

Medium priority due to CVSS score of 4.8 and potential for data corruption or service instabilities.

Recommended defensive actions

• Verify kronosnet version and configuration
• Implement network payload encryption
• Restrict dynamic link management to trusted IP addresses
• Monitor for suspicious network activity
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets

Evidence notes

Evidence is based on information from the NVD and Red Hat security advisories. The vulnerability has been reported in kronosnet version 1.34 or earlier. Users should verify their version and configuration to determine if they are affected. The NVD and Red Hat security advisories provide additional details on the vulnerability and potential mitigations.

Official resources