---
id: CVE-2026-15811
title: >-
  Kronosnet: kronosnet: encryption key exposure in memory after cryptographic
  configuration changes
summary: >-
  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. Thi…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-212
vendor: Red Hat
product: kronosnet
affected:
  - kronosnet (all versions)
  - kronosnet (all versions)
  - kronosnet (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
  - openshift/ose-rhel-coreos-9 (all versions)
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-23T14:31:21.569077Z'
published: '2026-07-21'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T17:54:20.814Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-15811'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-15811'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2500849'
    label: RHBZ#2500849
tags:
  - cve.org
epss: 0.00082
epssPercentile: 0.00203
ingestedAt: '2026-11-06T18:00:12.492Z'
---

## Overview

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.

## Affected

- `kronosnet (all versions)`
- `kronosnet (all versions)`
- `kronosnet (all versions)`
- `openshift/ose-rhel-coreos-9 (all versions)`
- `openshift/ose-rhel-coreos-9 (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.