Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-15811
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.
EPSS: 0.001 (0.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
Frequently asked questions
- What is CVE-2026-15811?
- CVE-2026-15811 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Improper Removal of Sensitive Information Before Storage or Transfer. CVSS score: 5.8/10. Published 2026-07-21.
- How severe is CVE-2026-15811?
- Medium severity. CVSS v3 base score is 5.8 out of 10.