CVE-2026-15811 PUBLISHED

Kronosnet: kronosnet: encryption key exposure in memory after cryptographic configuration changes

Assigner: redhat
Reserved: 15.07.2026 Published: 21.07.2026 Updated: 21.07.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L
CVSS Score: 5.8

Product Status

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Versions Default: affected
Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Versions Default: affected

Credits

  • Red Hat would like to thank Fabio Di Nitto for reporting this issue.

References

Problem Types

  • Improper Removal of Sensitive Information Before Storage or Transfer CWE