{"id":"CVE-2026-110118","state":"PUBLISHED","title":"WorkFlow-Engine through 9.6.11 Missing Authorization via flowableui buttonOperation Endpoints","description":"WorkFlow-Engine through 9.6.11 contains a missing authorization vulnerability that allows authenticated users to complete or reassign other users' workflow tasks via /vue/buttonOperation endpoints. Low-privileged attackers can supply a known taskId to the complete, completeTask or reAssign handlers to approve tasks or reassign them without authority.","publishedAt":"2026-10-13T16:53:15.337Z","updatedAt":"2026-10-16T22:18:12.566Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["risesoft-y9 WorkFlow-Engine"],"affected":[{"vendor":"risesoft-y9","product":"WorkFlow-Engine","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"9.6.11","versionType":"semver"}],"repo":"https://github.com/risesoft-y9/WorkFlow-Engine"}],"references":["https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/workflow-engine-task-op-missing-authz","https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-flowableui/risenet-y9boot-support-flowableui/src/main/java/net/risesoft/controller/buttonOperation/ButtonOperationRestController.java#L1035-L1054","https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-flowableui/risenet-y9boot-support-flowableui/src/main/java/net/risesoft/controller/buttonOperation/ButtonOperationRestController.java#L216-L252","https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-processadmin/risenet-y9boot-support-processadmin/src/main/java/net/risesoft/service/impl/CustomTaskServiceImpl.java#L76-L79","https://www.vulncheck.com/advisories/workflow-engine-through-9.6.11-missing-authorization-via-flowableui-buttonoperation-endpoints"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/110xxx/CVE-2026-110118.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110118","state":"PUBLISHED","datePublished":"2026-10-13T16:53:15.337Z","dateUpdated":"2026-10-16T22:18:12.566Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-13T16:23:07.760Z"},"containers":{"cna":{"title":"WorkFlow-Engine through 9.6.11 Missing Authorization via flowableui buttonOperation Endpoints","descriptions":[{"lang":"en","value":"WorkFlow-Engine through 9.6.11 contains a missing authorization vulnerability that allows authenticated users to complete or reassign other users' workflow tasks via /vue/buttonOperation endpoints. Low-privileged attackers can supply a known taskId to the complete, completeTask or reAssign handlers to approve tasks or reassign them without authority."}],"affected":[{"vendor":"risesoft-y9","product":"WorkFlow-Engine","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"9.6.11","versionType":"semver"}],"repo":"https://github.com/risesoft-y9/WorkFlow-Engine"}],"references":[{"url":"https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/workflow-engine-task-op-missing-authz","tags":["third-party-advisory"]},{"url":"https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-flowableui/risenet-y9boot-support-flowableui/src/main/java/net/risesoft/controller/buttonOperation/ButtonOperationRestController.java#L1035-L1054","tags":["technical-description"]},{"url":"https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-flowableui/risenet-y9boot-support-flowableui/src/main/java/net/risesoft/controller/buttonOperation/ButtonOperationRestController.java#L216-L252","tags":["technical-description"]},{"url":"https://github.com/risesoft-y9/WorkFlow-Engine/blob/v9.6.11/y9-module-processadmin/risenet-y9boot-support-processadmin/src/main/java/net/risesoft/service/impl/CustomTaskServiceImpl.java#L76-L79","tags":["technical-description"]},{"url":"https://www.vulncheck.com/advisories/workflow-engine-through-9.6.11-missing-authorization-via-flowableui-buttonoperation-endpoints","name":"VulnCheck Advisory: WorkFlow-Engine through 9.6.11 Missing Authorization via flowableui buttonOperation Endpoints","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:H/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-13T16:53:15.337Z"},"datePublic":"2026-10-13T00:00:00.000Z","credits":[{"lang":"en","value":"hieuPenguinnn","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-16T22:18:00.686944Z","id":"CVE-2026-110118","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":"2026-10-16T22:18:12.566Z"}}]}}}