{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-109142","assignerOrgId":"206fc3a0-e175-490b-9eaa-a5738056c9f6","state":"PUBLISHED","assignerShortName":"NLnet Labs","dateReserved":"2026-10-12T11:22:34.614Z","datePublished":"2026-11-02T15:42:13.364Z","dateUpdated":"2026-11-02T16:10:56.242Z"},"containers":{"cna":{"title":"Krill treats a \"local parent\" as already-authenticated, letting a CA operator act as any child of any CA on the same server","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":"When a CA's parent lives on the same Krill server: instead of building and verifying a signed CMS message, it runs the RFC 6492 provisioning exchange in-process and trusts the child identity (child_handle) that the caller put in the parent contact. Nothing checks that this child identity actually belongs to the CA making the request."}],"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-639","description":"CWE-639 Authorization Bypass Through User-Controlled Key","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","type":"finder"}],"references":[{"url":"https://www.nlnetlabs.nl/downloads/krill/CVE-2026-109142.txt","tags":["vendor-advisory"]}],"providerMetadata":{"orgId":"206fc3a0-e175-490b-9eaa-a5738056c9f6","shortName":"NLnet Labs","dateUpdated":"2026-11-02T15:42:13.364Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-02T16:10:47.154411Z","id":"CVE-2026-109142","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":"2026-11-02T16:10:56.242Z"}}]}}