{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93596","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-09-18T11:00:32.755Z","datePublished":"2026-09-18T13:20:08.169Z","dateUpdated":"2026-09-18T17:50:53.987Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-18T13:20:08.169Z"},"datePublic":"2026-09-03T00:00:00.000Z","title":"ArcadeDB before 26.9.1 Authorization Bypass via Batch Edge Connect","descriptions":[{"lang":"en","value":"ArcadeDB before 26.9.1 (com.arcadedb:arcadedb-engine <= 26.8.1) fails to bind the authenticated principal onto the DatabaseAsyncTransaction async worker threads used by the parallel edge-connect phase of POST /api/v1/batch/{database}. Because those workers have no current user, LocalDatabase.checkPermissionsOnFile returns early and allows the write, bypassing per-type CREATE_RECORD/UPDATE_RECORD ACL enforcement. In deployments that rely on per-type or per-group ACLs, an authenticated low-privilege user holding CREATE_RECORD on an edge type E but with CREATE_RECORD/UPDATE_RECORD revoked on a vertex type V can submit a graph edge-load batch request (with parallelFlush at its default value of true) and durably append edges to protected vertices of type V by writing records into V's <V>_out_edges/<V>_in_edges buckets, resulting in unauthorized modification of graph adjacency. Setting parallelFlush=false causes the request to be correctly rejected. This is an incomplete fix of GHSA-c23x-pqcj-7hfm, which bound the principal only on the HTTP handler thread."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Missing Authorization","cweId":"CWE-862","type":"CWE"}]}],"affected":[{"vendor":"ArcadeData","product":"arcadedb","defaultStatus":"unaffected","packageURL":"pkg:maven/com.arcadedb/arcadedb-engine","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"26.9.1"},{"version":"26.9.1","status":"unaffected","versionType":"semver"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-27vw-j8qc-5h7x","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-27vw-j8qc-5h7x)"},{"name":"VulnCheck Advisory: ArcadeDB before 26.9.1 Authorization Bypass via Batch Edge Connect","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/arcadedb-before-26.9.1-authorization-bypass-via-batch-edge-connect"}],"credits":[{"lang":"en","value":"manus-use","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"references":[{"url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-27vw-j8qc-5h7x","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-18T17:50:26.944034Z","id":"CVE-2026-93596","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-18T17:50:53.987Z"}}]}}