Description
The vulnerability is that Krill encrypts every login-session token with a nonce built from a counter that is reset to 0 on every Krill restart, so the same (key, nonce) pair is used again after each restart.
Published: 2026-11-02
Score: 8.4 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

This issue is fixed in 0.16.1 and all later versions.

Tracking

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Advisories

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History

Mon, 02 Nov 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 02 Nov 2026 16:00:00 +0000

Type Values Removed Values Added
Description The vulnerability is that Krill encrypts every login-session token with a nonce built from a counter that is reset to 0 on every Krill restart, so the same (key, nonce) pair is used again after each restart.
Title Krill login-session tokens reuse their encryption nonce across restarts, so any user who can log in can forge an "admin" token
Weaknesses CWE-323
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: NLnet Labs

Published:

Updated: 2026-11-02T16:12:58.713Z

Reserved: 2026-10-12T11:22:34.614Z

Link: CVE-2026-109140

cve-icon Vulnrichment

Updated: 2026-11-02T16:12:53.519Z

cve-icon NVD

Status : Received

Published: 2026-11-02T16:17:26.953

Modified: 2026-11-02T17:17:34.737

Link: CVE-2026-109140

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-02T17:30:17Z

Weaknesses
  • CWE-323

    Reusing a Nonce, Key Pair in Encryption