Vulnerability record/PUBLISHED/Published Nov 2, 2026 15:41:58 UTC

CVE-2026-109140

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.

Base score8.4/ 10

SeverityHighCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityHigh

Attack vectorNetworkAV

Attack complexityHighAC

Privileges requiredLowPR

User interactionNoneUI

ScopeChangedS

Confidentiality impactHighC

Integrity impactHighI

Availability impactLowA

CVSS vector stringCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering AuthorityNLnet Labs

Last updatedNov 2, 2026 16:12:58 UTC

PublishedNov 2, 2026 15:41:58 UTC

ReservedOct 12, 2026 11:22:34 UTC

Credits

Anthropic and Ada Logics, Aymen Benlamari