# CVE-2026-15811: kronosnet: A vulnerability was found in kronosnet's (version <=1.34) cryptographic configuration management

CVE-2026-15811 is fixed in kronosnet on 1 platform, first by DEBIAN-CVE-2026-15811, released July 21, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-15811
- Priority: Routine
- CVSS: 5.8 (medium)
- EPSS: 0.0008
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 21, 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kronosnet Debian 14 | 1.35-1 | [DEBIAN-CVE-2026-15811](https://patchblox.com/security/data/fix/linux/debian-cve-2026-15811.md) | Jul 21, 2026 |
| Linux | kronosnet opensuse-leap 16.0 | 1.30-160000.4.1 | [OPENSUSE-SU-2026:21851-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21851-1.md) | Sep 15, 2026 |
| Linux | kronosnet sles 16.0 | 1.30-160000.4.1 | [SUSE-SU-2026:23782-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23782-1.md) | Sep 15, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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