{"schema":"threatline.record/2","record":{"id":"CVE-2026-50054","aliases":[],"summary":"Zimbra Collaboration Suite GrantRightsRequest SOAP Handler Allows Self-Granting of Undocumented loginAs Mailbox Delegation Right","details":"An authorization flaw in Zimbra Collaboration Suite’s GrantRightsRequest allows an attacker with access to an authenticated account to grant another local account the loginAs right, creating persistent mailbox access and mail-sending authority that survives password changes and session expiry.","categories":["Applications & CMS"],"product":"Zimbra Collaboration Suite","vendor":"Zimbra","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-50054","source_modified_at":"2026-10-08T19:10:47.375Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Zimbra Collaboration Suite","vendor":"Zimbra","versions":[{"status":"affected","version":"0","lessThan":"10.1.20","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-50054","source_modified_at":"2026-10-08T19:10:47.375Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Zimbra Collaboration Suite","ecosystem":null},"version":"10.1.20","basis":"first unaffected version stated in the CVE record"}],"cvss":7.1,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00171,"percentile":0.06184,"score_date":"2026-10-23"},"published_at":"2026-10-08T16:25:37.442Z","modified_at":"2026-10-08T19:10:47.375Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-50054","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-08T19:10:47.375Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-50054","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-08T19:10:38.026517Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-08T19:10:47.375Z","content_hash":"0d0fcf26c4547e3045f07b56c6dff2ba27cafe2a8047ee04d3f0f09a08efcc1e"}}