{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-104969", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-02T18:16:13.629Z", "datePublished": "2026-10-05T16:57:52.957Z", "dateUpdated": "2026-10-05T17:48:30.635Z"}, "containers": {"cna": {"title": "Plane: Cross-Tenant Cycle Issue Hijack via IDOR", "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "lang": "en", "description": "CWE-639: Authorization Bypass Through User-Controlled Key", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/makeplane/plane/security/advisories/GHSA-22g9-9xfv-q3fr", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/makeplane/plane/security/advisories/GHSA-22g9-9xfv-q3fr"}, {"name": "https://github.com/makeplane/plane/pull/9269", "tags": ["x_refsource_MISC"], "url": "https://github.com/makeplane/plane/pull/9269"}, {"name": "https://github.com/makeplane/plane/commit/81d9873d7f1cf1d1252ed53c12dd33696be73a89", "tags": ["x_refsource_MISC"], "url": "https://github.com/makeplane/plane/commit/81d9873d7f1cf1d1252ed53c12dd33696be73a89"}, {"name": "https://github.com/makeplane/plane/releases/tag/v1.4.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/makeplane/plane/releases/tag/v1.4.0"}], "affected": [{"vendor": "makeplane", "product": "plane", "versions": [{"version": "< 1.4.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-05T16:57:52.957Z"}, "descriptions": [{"lang": "en", "value": "Plane is an open-source project management tool. Prior to 1.4.0, the cycle-issues endpoint accepts issue UUIDs in the request body without validating that they belong to the caller's workspace. An authenticated user can add issues from any workspace to a cycle they control. If a victim issue is already assigned to a cycle, the operation removes it from the victim's cycle, causing a destructive cross-tenant write. This issue is fixed in 1.4.0."}], "source": {"advisory": "GHSA-22g9-9xfv-q3fr", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/makeplane/plane/security/advisories/GHSA-22g9-9xfv-q3fr", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-05T17:47:06.863715Z", "id": "CVE-2026-104969", "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": "2026-10-05T17:48:30.635Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "plane", "vendor": "makeplane", "versions": [{"status": "affected", "version": "< 1.4.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Plane is an open-source project management tool. Prior to 1.4.0, the cycle-issues endpoint accepts issue UUIDs in the request body without validating that they belong to the caller's workspace. An authenticated user can add issues from any workspace to a cycle they control. If a victim issue is already assigned to a cycle, the operation removes it from the victim's cycle, causing a destructive cross-tenant write. This issue is fixed in 1.4.0."}], "id": "CVE-2026-104969", "lastModified": "2026-10-05T17:17:12.900", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-05T17:17:12.783", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/makeplane/plane/commit/81d9873d7f1cf1d1252ed53c12dd33696be73a89"}, {"source": "security-advisories@github.com", "url": "https://github.com/makeplane/plane/pull/9269"}, {"source": "security-advisories@github.com", "url": "https://github.com/makeplane/plane/releases/tag/v1.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/makeplane/plane/security/advisories/GHSA-22g9-9xfv-q3fr"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}