{"schema":"threatline.record/2","record":{"id":"CVE-2026-10631","aliases":[],"summary":"Zimbra Collaboration Suite EWS Extension Authorization Bypass via Crafted Composite Folder/Item Identifier","details":"An authorization bypass in the EWS FindItem handler of Zimbra Collaboration Suite 10.1.0 through 10.1.19 allows an authenticated user with EWS enabled to read complete mailbox items, including raw MIME and attachments, from arbitrary local accounts without a share or delegation grant.","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-2026-10631","source_modified_at":"2026-10-08T19:11:17.411Z","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-2026-10631","source_modified_at":"2026-10-08T19:11:17.411Z","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":6.5,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00213,"percentile":0.11061,"score_date":"2026-10-23"},"published_at":"2026-10-08T16:25:27.987Z","modified_at":"2026-10-08T19:11:17.411Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-10631","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-08T19:11:17.411Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-10631","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":"2026-10-08T19:11:03.655656Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-08T19:11:17.411Z","content_hash":"f3e51dbeeeb52af68f0bf96b04900afa3479153fc2ff5c70c93106e5d363ccf7"}}