CVE-2026-15811 MEDIUM

CVE-2026-15811: Kronosnet: kronosnet: encryption key exposure in memory after cryptographic configuration changes

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-212
Published July 21, 2026
Last update July 21, 2026

CVSS base score

5.8/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 21, 2026 CVE published