{"id":"CVE-2026-61708","state":"PUBLISHED","title":"SOCFortress CoPilot: Cross-Tenant Arbitrary Object-Store Write via the Data-Store Upload Endpoint (customer_user)","description":"SOCFortress CoPilot focuses on providing a single pane of glass for all your security operations needs. Prior to 0.1.76, `POST /api/agent_data_store/upload` in `backend/app/data_store/data_store_routes.py` permits `customer_user` callers to choose `bucket_name` and `object_name` without an allowlist, tenant prefix, ownership check or content restriction. The only file check requires a nonempty filename. The operations in `backend/app/data_store/data_store_operations.py` create missing buckets and upsert objects, allowing existing objects belonging to any tenant to be overwritten. Targets include `sysmon-configs/<customer_code>/sysmon_config.xml` distributed to managed Windows endpoints, `copilot-case-report-templates/<name>` rendered server-side, and case evidence or forensic artifacts under `copilot-cases/<case_id>/<file>` and `velociraptor-artifacts/<agent_id>/<flow_id>/<file>`. A lowest-privilege user can tamper with cross-tenant evidence, blind endpoint telemetry, poison report templates for later code execution, plant data or exhaust storage. Sibling list, download and delete routes remain restricted to admin/analyst; the exposed operation is the upload write path. This issue is fixed in version 0.1.76.","publishedAt":"2026-10-30T14:20:17.885Z","updatedAt":"2026-10-30T15:52:19.134Z","severity":{"score":8.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["socfortress CoPilot"],"affected":[{"vendor":"socfortress","product":"CoPilot","versions":[{"version":"< 0.1.76","status":"affected"}]}],"references":["https://github.com/socfortress/CoPilot/security/advisories/GHSA-6j26-wcv6-gp3f","https://github.com/socfortress/CoPilot/pull/937","https://github.com/socfortress/CoPilot/commit/2d090bc07a109eefbdf9ed22dc67b0c93922d9ca","https://github.com/socfortress/CoPilot/tree/v0.1.76"],"weaknesses":["CWE-284","CWE-639","CWE-862"],"ingestedAt":"2026-10-30T15:58:06.618Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/61xxx/CVE-2026-61708.json","commit":"2b1b837cd89354d9c9a57d56e0640dc825b19235","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61708","state":"PUBLISHED","datePublished":"2026-10-30T14:20:17.885Z","dateUpdated":"2026-10-30T15:52:19.134Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-10T18:51:13.919Z"},"containers":{"cna":{"title":"SOCFortress CoPilot: Cross-Tenant Arbitrary Object-Store Write via the Data-Store Upload Endpoint (customer_user)","descriptions":[{"lang":"en","value":"SOCFortress CoPilot focuses on providing a single pane of glass for all your security operations needs. Prior to 0.1.76, `POST /api/agent_data_store/upload` in `backend/app/data_store/data_store_routes.py` permits `customer_user` callers to choose `bucket_name` and `object_name` without an allowlist, tenant prefix, ownership check or content restriction. The only file check requires a nonempty filename. The operations in `backend/app/data_store/data_store_operations.py` create missing buckets and upsert objects, allowing existing objects belonging to any tenant to be overwritten. Targets include `sysmon-configs/<customer_code>/sysmon_config.xml` distributed to managed Windows endpoints, `copilot-case-report-templates/<name>` rendered server-side, and case evidence or forensic artifacts under `copilot-cases/<case_id>/<file>` and `velociraptor-artifacts/<agent_id>/<flow_id>/<file>`. A lowest-privilege user can tamper with cross-tenant evidence, blind endpoint telemetry, poison report templates for later code execution, plant data or exhaust storage. Sibling list, download and delete routes remain restricted to admin/analyst; the exposed operation is the upload write path. This issue is fixed in version 0.1.76."}],"affected":[{"vendor":"socfortress","product":"CoPilot","versions":[{"version":"< 0.1.76","status":"affected"}]}],"references":[{"url":"https://github.com/socfortress/CoPilot/security/advisories/GHSA-6j26-wcv6-gp3f","name":"https://github.com/socfortress/CoPilot/security/advisories/GHSA-6j26-wcv6-gp3f","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/socfortress/CoPilot/pull/937","name":"https://github.com/socfortress/CoPilot/pull/937","tags":["x_refsource_MISC"]},{"url":"https://github.com/socfortress/CoPilot/commit/2d090bc07a109eefbdf9ed22dc67b0c93922d9ca","name":"https://github.com/socfortress/CoPilot/commit/2d090bc07a109eefbdf9ed22dc67b0c93922d9ca","tags":["x_refsource_MISC"]},{"url":"https://github.com/socfortress/CoPilot/tree/v0.1.76","name":"https://github.com/socfortress/CoPilot/tree/v0.1.76","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","lang":"en","description":"CWE-284: Improper Access Control","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-30T14:20:17.885Z"},"source":{"advisory":"GHSA-6j26-wcv6-gp3f","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T15:21:29.118330Z","id":"CVE-2026-61708","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-30T15:52:19.134Z"}}]}}}