CVE-2026-68561

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68561", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-30T19:56:44.102Z", "datePublished": "2026-08-19T19:24:58.933Z", "dateUpdated": "2026-08-25T13:57:28.356Z"}, "containers": {"cna": {"title": "Wekan: a low-privilege board member escalates to board admin and takes over a private board via the `sort` collection-allow rule", "problemTypes": [{"descriptions": [{"cweId": "CWE-269", "lang": "en", "description": "CWE-269: Improper Privilege Management", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf"}, {"name": "https://github.com/wekan/wekan/commit/dc135f6e7d59f9f56065cd5df83b1f123ea120bb", "tags": ["x_refsource_MISC"], "url": "https://github.com/wekan/wekan/commit/dc135f6e7d59f9f56065cd5df83b1f123ea120bb"}, {"name": "https://github.com/wekan/wekan/releases/tag/v9.89", "tags": ["x_refsource_MISC"], "url": "https://github.com/wekan/wekan/releases/tag/v9.89"}], "affected": [{"vendor": "wekan", "product": "wekan", "versions": [{"version": "< 9.89", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T19:24:58.933Z"}, "descriptions": [{"lang": "en", "value": "Wekan is open source kanban built with Meteor. Prior to 9.89, the second Boards.allow({ update }) rule in server/permissions/boards.js called canUpdateBoardSort in server/lib/utils.js, which authorized any board member whenever fieldNames included sort. Because Meteor combines allow rules with OR semantics and applies the complete modifier, a comment-only or read-only member could send one Boards.update with $set values for sort, members, permission, and title, make themselves the sole board administrator, expose a private board, and evict the legitimate owner; the last-admin deny rule inspected only $pull and did not block a wholesale $set of members. Version 9.89 requires sort to be the only modified field and rejects $set member arrays that remove the last active administrator. This issue is fixed in version 9.89."}], "source": {"advisory": "GHSA-xm8x-c8wg-jhmf", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-25T13:57:05.363320Z", "id": "CVE-2026-68561", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T13:57:28.356Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68561", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-25T13:57:05.363320Z"}}}], "references": [{"url": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T13:57:23.575Z"}}], "cna": {"title": "Wekan: a low-privilege board member escalates to board admin and takes over a private board via the `sort` collection-allow rule", "source": {"advisory": "GHSA-xm8x-c8wg-jhmf", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "wekan", "product": "wekan", "versions": [{"status": "affected", "version": "< 9.89"}]}], "references": [{"url": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf", "name": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/wekan/wekan/commit/dc135f6e7d59f9f56065cd5df83b1f123ea120bb", "name": "https://github.com/wekan/wekan/commit/dc135f6e7d59f9f56065cd5df83b1f123ea120bb", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/wekan/wekan/releases/tag/v9.89", "name": "https://github.com/wekan/wekan/releases/tag/v9.89", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Wekan is open source kanban built with Meteor. Prior to 9.89, the second Boards.allow({ update }) rule in server/permissions/boards.js called canUpdateBoardSort in server/lib/utils.js, which authorized any board member whenever fieldNames included sort. Because Meteor combines allow rules with OR semantics and applies the complete modifier, a comment-only or read-only member could send one Boards.update with $set values for sort, members, permission, and title, make themselves the sole board administrator, expose a private board, and evict the legitimate owner; the last-admin deny rule inspected only $pull and did not block a wholesale $set of members. Version 9.89 requires sort to be the only modified field and rejects $set member arrays that remove the last active administrator. This issue is fixed in version 9.89."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-269", "description": "CWE-269: Improper Privilege Management"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-19T19:24:58.933Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68561", "state": "PUBLISHED", "dateUpdated": "2026-08-25T13:57:28.356Z", "dateReserved": "2026-07-30T19:56:44.102Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-08-19T19:24:58.933Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "wekan", "vendor": "wekan", "versions": [{"status": "affected", "version": "< 9.89"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Wekan is open source kanban built with Meteor. Prior to 9.89, the second Boards.allow({ update }) rule in server/permissions/boards.js called canUpdateBoardSort in server/lib/utils.js, which authorized any board member whenever fieldNames included sort. Because Meteor combines allow rules with OR semantics and applies the complete modifier, a comment-only or read-only member could send one Boards.update with $set values for sort, members, permission, and title, make themselves the sole board administrator, expose a private board, and evict the legitimate owner; the last-admin deny rule inspected only $pull and did not block a wholesale $set of members. Version 9.89 requires sort to be the only modified field and rejects $set member arrays that remove the last active administrator. This issue is fixed in version 9.89."}, {"lang": "es", "value": "Wekan es un kanban de c\u00f3digo abierto construido con Meteor. Antes de la versi\u00f3n 9.89, la segunda regla Boards.allow({ update }) en server/permissions/boards.js llamaba a canUpdateBoardSort en server/lib/utils.js, lo que autorizaba a cualquier miembro del tablero siempre que fieldNames inclu\u00eda sort. Debido a que Meteor combina las reglas de permiso con sem\u00e1ntica OR y aplica el modificador completo, un miembro solo de comentarios o de solo lectura pod\u00eda enviar una actualizaci\u00f3n de Boards con valores $set para sort, members, permission y title, convertirse en el \u00fanico administrador del tablero, exponer un tablero privado y expulsar al propietario leg\u00edtimo; la regla de denegaci\u00f3n del \u00faltimo administrador inspeccionaba solo $pull y no bloqueaba un $set masivo de members. La versi\u00f3n 9.89 requiere que sort sea el \u00fanico campo modificado y rechaza los arrays de miembros $set que eliminan al \u00faltimo administrador activo. Este problema est\u00e1 solucionado en la versi\u00f3n 9.89."}], "id": "CVE-2026-68561", "lastModified": "2026-10-26T10:10:00.140", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68561", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-25T13:57:05.363320Z", "version": "2.0.3"}}]}, "published": "2026-08-19T20:17:21.400", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/wekan/wekan/commit/dc135f6e7d59f9f56065cd5df83b1f123ea120bb"}, {"source": "security-advisories@github.com", "url": "https://github.com/wekan/wekan/releases/tag/v9.89"}, {"source": "security-advisories@github.com", "url": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/wekan/wekan/security/advisories/GHSA-xm8x-c8wg-jhmf"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,9.89)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "wekan", "source": "cna", "vendor": "wekan"}, "product": "wekan", "vendor": "wekan"}], "created": "2026-08-19T21:45:07.367220+00:00", "updated": "2026-08-20T12:30:05.184767+00:00", "vendors": ["wekan", "wekan$PRODUCT$wekan"]}