CVE-2026-15811
Fixed in a distro release EPSS <1%CVSS 5.8
A vulnerability was found in kronosnet's (version <=1.34) cryptographic configuration management. The framework does not correctly zero-out or wipe sensitive memory segments after executing changes to its cryptographic configuration. This omission leaves raw encryption keys resident in memory after the associated structures are freed. A local attacker capable of leveraging memory disclosure techniques could exploit this flaw to retrieve the active encryption key, allowing them to decrypt cluster network communications or inject malicious packets to cause severe high-availability cluster instability.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | kronosnet | no fix |
| Debian 13 | kronosnet | no fix |
| Debian 14 | kronosnet | 1.35-1 |
| SUSE Linux Enterprise High Availability Extension 16.0 | kronosnet | 1.30-160000.4.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | kronosnet | 1.30-160000.4.1 |
| SUSE Linux Micro 6.2 | kernel-livepatch-SLE16-RT_Update_15 | 3-160000.1.1 |
| SUSE Linux Micro Extras 6.2 | rpm | 4.20.1-160000.3.1 |
| Ubuntu 18.04 LTS | kronosnet | no fix |
| Ubuntu 20.04 LTS | kronosnet | no fix |
| Ubuntu 22.04 LTS | kronosnet | no fix |
| Ubuntu 24.04 LTS | kronosnet | no fix |
| Ubuntu 26.04 LTS | kronosnet | no fix |
| Ubuntu 26.10 | kronosnet | no fix |
| openSUSE Leap 16.0 | kronosnet | 1.30-160000.4.1 |
| openSUSE Tumbleweed | kronosnet | 1.33-2.1 |