{"id":"CVE-2026-93596","state":"PUBLISHED","title":"ArcadeDB before 26.9.1 Authorization Bypass via Batch Edge Connect","description":"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.","publishedAt":"2026-09-18T13:20:08.169Z","updatedAt":"2026-09-18T17:50:53.987Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["ArcadeData arcadedb"],"affected":[{"vendor":"ArcadeData","product":"arcadedb","packageURL":"pkg:maven/com.arcadedb/arcadedb-engine","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"26.9.1","versionType":"semver"},{"version":"26.9.1","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-27vw-j8qc-5h7x","https://www.vulncheck.com/advisories/arcadedb-before-26.9.1-authorization-bypass-via-batch-edge-connect"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93596.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93596","state":"PUBLISHED","datePublished":"2026-09-18T13:20:08.169Z","dateUpdated":"2026-09-18T17:50:53.987Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-18T11:00:32.755Z"},"containers":{"cna":{"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."}],"affected":[{"vendor":"ArcadeData","product":"arcadedb","packageURL":"pkg:maven/com.arcadedb/arcadedb-engine","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"26.9.1","versionType":"semver"},{"version":"26.9.1","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-27vw-j8qc-5h7x","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-27vw-j8qc-5h7x)"},{"url":"https://www.vulncheck.com/advisories/arcadedb-before-26.9.1-authorization-bypass-via-batch-edge-connect","name":"VulnCheck Advisory: ArcadeDB before 26.9.1 Authorization Bypass via Batch Edge Connect","tags":["third-party-advisory"]}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-18T13:20:08.169Z"},"datePublic":"2026-09-03T00:00:00.000Z","credits":[{"lang":"en","value":"manus-use","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-18T17:50:53.987Z"}}]}}}