{"id":"CVE-2026-105637","state":"PUBLISHED","title":"Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling of CVE-2026-46558)","description":"Plane is an open-source project management tool. Prior to 1.4.0, ProjectBulkAssetEndpoint.post in apps/api/plane/app/views/asset/v2.py retrieves assets using id__in=asset_ids and workspace__slug=slug but does not constrain the query with project_id from the URL. A workspace Guest can provide asset UUIDs from another project in the same workspace and reassign their issue_id, comment_id, page_id, draft_issue_id, or project_id to an entity the attacker controls. Plane then treats the attacker's project as the new owner and provides a presigned download URL for the hijacked file. This issue is fixed in 1.4.0.","publishedAt":"2026-10-05T18:04:02.780Z","updatedAt":"2026-10-05T19:09:51.157Z","severity":{"score":9.6,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["makeplane plane"],"affected":[{"vendor":"makeplane","product":"plane","versions":[{"version":"< 1.4.0","status":"affected"}]}],"references":["https://github.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwp","https://github.com/makeplane/plane/pull/9495","https://github.com/makeplane/plane/commit/15e835710c7f938e0fae9c0ee77bb8162ff436a0","https://github.com/makeplane/plane/releases/tag/v1.4.0"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105637.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105637","state":"PUBLISHED","datePublished":"2026-10-05T18:04:02.780Z","dateUpdated":"2026-10-05T19:09:51.157Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T16:40:39.611Z"},"containers":{"cna":{"title":"Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling of CVE-2026-46558)","descriptions":[{"lang":"en","value":"Plane is an open-source project management tool. Prior to 1.4.0, ProjectBulkAssetEndpoint.post in apps/api/plane/app/views/asset/v2.py retrieves assets using id__in=asset_ids and workspace__slug=slug but does not constrain the query with project_id from the URL. A workspace Guest can provide asset UUIDs from another project in the same workspace and reassign their issue_id, comment_id, page_id, draft_issue_id, or project_id to an entity the attacker controls. Plane then treats the attacker's project as the new owner and provides a presigned download URL for the hijacked file. This issue is fixed in 1.4.0."}],"affected":[{"vendor":"makeplane","product":"plane","versions":[{"version":"< 1.4.0","status":"affected"}]}],"references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwp","name":"https://github.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/makeplane/plane/pull/9495","name":"https://github.com/makeplane/plane/pull/9495","tags":["x_refsource_MISC"]},{"url":"https://github.com/makeplane/plane/commit/15e835710c7f938e0fae9c0ee77bb8162ff436a0","name":"https://github.com/makeplane/plane/commit/15e835710c7f938e0fae9c0ee77bb8162ff436a0","tags":["x_refsource_MISC"]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","name":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-05T18:04:02.780Z"},"source":{"advisory":"GHSA-r2hw-fff3-pjwp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-r2hw-fff3-pjwp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T19:09:42.896444Z","id":"CVE-2026-105637","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-05T19:09:51.157Z"}}]}}}