{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-109140", "assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "state": "PUBLISHED", "assignerShortName": "NLnet Labs", "dateReserved": "2026-10-12T11:22:34.614Z", "datePublished": "2026-11-02T15:41:58.436Z", "dateUpdated": "2026-11-02T16:12:58.713Z"}, "containers": {"cna": {"title": "Krill login-session tokens reuse their encryption nonce across restarts, so any user who can log in can forge an \"admin\" token", "datePublic": "2026-11-02T00:00:00.000Z", "affected": [{"vendor": "NLnet Labs", "product": "Krill", "versions": [{"version": "0.16.1", "status": "unaffected", "lessThan": "*", "versionType": "semver"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "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."}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseScore": 8.4, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"}}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-323", "description": "CWE-323 Reusing a Nonce, Key Pair in Encryption", "type": "CWE"}]}], "solutions": [{"lang": "en", "value": "This issue is fixed in 0.16.1 and all later versions."}], "timeline": [{"time": "2026-10-03T00:00:00.000Z", "lang": "en", "value": "Issue reported"}, {"time": "2026-11-02T00:00:00.000Z", "lang": "en", "value": "Fixes released"}], "credits": [{"lang": "en", "value": "Anthropic and Ada Logics, Aymen Benlamari", "type": "finder"}], "references": [{"url": "https://www.nlnetlabs.nl/downloads/krill/CVE-2026-109140.txt", "tags": ["vendor-advisory"]}], "providerMetadata": {"orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "shortName": "NLnet Labs", "dateUpdated": "2026-11-02T15:41:58.436Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-02T16:12:47.575702Z", "id": "CVE-2026-109140", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-02T16:12:58.713Z"}}]}}