CVE-2026-109140 Krill - Weak Cryptography

Krill contains a weak cryptography vulnerability caused by reuse of (key, nonce) pairs for encrypting login-session tokens due to nonce counter reset on restart, letting attackers potentially decrypt or forge tokens, exploit requires attacker to observe encrypted tokens across restarts.

CVSS base score 8.4 /10
High
CISA KEV
Not listed
Public exploit
None known
View the NVD record ↗

Details

Type
Weak Cryptography
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Published
2 November 2026
Updated
3 November 2026
Weakness
CWE-323

Vendor fix

Update to a version that uses unique nonces per encryption or the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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