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.
Published: 2026-07-21
Score: 5.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A flaw in kronosnet’s cryptographic configuration management leaves raw encryption keys in memory after their containers are freed. The omission of proper zeroing or wiping allows a local attacker, who can employ memory disclosure techniques, to retrieve active encryption keys. Possession of these keys enables decryption of cluster network traffic and the injection of forged packets, potentially destabilizing high-availability environments and compromising the confidentiality of cluster communications.

Affected Systems

The vulnerability affects Red Hat Enterprise Linux 8, 9, and 10 as well as Red Hat OpenShift Container Platform 4 when using kronosnet version 1.34 or earlier.

Risk and Exploitability

The CVSS score of 5.8 indicates moderate severity. The EPSS score is less than 1%, indicating a very low probability of exploitation. The flaw is limited to local attackers who can access process memory; it is not exploitable remotely. The vulnerability is not listed in CISA's KEV catalog. While the potential impact—decrypting cluster traffic and injecting malicious packets—could undermine system stability, the attacker’s local nature and the low exploitation probability recommend monitoring until an official patch is available.

Generated by OpenCVE AI on July 30, 2026 at 18:04 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update kronosnet to a version newer than 1.34 that zeroes sensitive memory after configuration changes.
  • If an upgrade is not immediately possible, limit access to cryptographic configuration changes to the least privileged users and enforce strict file permissions on related binaries and configuration files.
  • After any cryptographic configuration change, force a restart of affected services to ensure all memory buffers are cleared.
  • Consider using additional memory protection mechanisms, such as kernel address space layout randomization (KASLR) or secure memory allocation APIs, to reduce the likelihood that raw keys remain in memory.

Generated by OpenCVE AI on July 30, 2026 at 18:04 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 23 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 21 Jul 2026 05:45:00 +0000

Type Values Removed Values Added
Title kronosnet: kronosnet: encryption key exposure in memory after cryptographic configuration changes Kronosnet: kronosnet: encryption key exposure in memory after cryptographic configuration changes
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References

Mon, 20 Jul 2026 12:15:00 +0000

Type Values Removed Values Added
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.
Title kronosnet: kronosnet: encryption key exposure in memory after cryptographic configuration changes
Weaknesses CWE-212
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L'}

threat_severity

Low


Subscriptions

Redhat Enterprise Linux Openshift
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-07-23T14:31:34.210Z

Reserved: 2026-07-15T10:18:11.691Z

Link: CVE-2026-15811

cve-icon Vulnrichment

Updated: 2026-07-23T14:31:24.788Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Low

Publid Date: 2026-07-15T10:28:00Z

Links: CVE-2026-15811 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T18:15:13Z

Weaknesses
  • CWE-212

    Improper Removal of Sensitive Information Before Storage or Transfer