CVE-2026-15811
Kronosnet: kronosnet: encryption key exposure in memory after cryptographic configuration changes
- State
- Published
- Severity
- 5.8 Medium
- Published
- Jul 21, 2026
- Updated
- Aug 21, 2026
- Reserved
- Jul 15, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.8 Medium | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L | redhat |
Weaknesses
- CWE-212 Improper Removal of Sensitive Information Before Storage or Transfer
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-15811vdb-entry
- RHBZ#2500849issue-tracking
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