{"id":"CVE-2026-52819","state":"PUBLISHED","title":"Kimai: Teamlead authorization bypass in GET /api/timesheets allows reading other users' timesheet records without being teamlead of the target","description":"Kimai is an open-source time tracking application. Prior to 2.57.0, the GET /api/timesheets list endpoint accepts user and users[] target identifiers from a caller with view_other_timesheet but does not apply access_user or verify that a ROLE_TEAMLEAD requester leads a team containing each target user. TimesheetController::cgetAction() adds the resolved users directly to the query while project and customer filtering still permits records on unscoped projects or projects sharing ordinary team membership, allowing a teamlead to retrieve another user's descriptions, timing data, tags, rate, and internalRate even though GET /api/timesheets/{id} would deny access through TimesheetVoter. This issue is fixed in version 2.57.0.","publishedAt":"2026-09-15T10:36:02.531Z","updatedAt":"2026-09-15T15:17:07.990Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["kimai kimai"],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.57.0","status":"affected"}]}],"references":["https://github.com/kimai/kimai/security/advisories/GHSA-4m8q-55qv-9pwp","https://github.com/kimai/kimai/pull/5929","https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849","https://github.com/kimai/kimai/releases/tag/2.57.0","https://www.kimai.org/en/security/ghsa-4m8q-55qv-9pwp"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/52xxx/CVE-2026-52819.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52819","state":"PUBLISHED","datePublished":"2026-09-15T10:36:02.531Z","dateUpdated":"2026-09-15T15:17:07.990Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-08T18:11:06.661Z"},"containers":{"cna":{"title":"Kimai: Teamlead authorization bypass in GET /api/timesheets allows reading other users' timesheet records without being teamlead of the target","descriptions":[{"lang":"en","value":"Kimai is an open-source time tracking application. Prior to 2.57.0, the GET /api/timesheets list endpoint accepts user and users[] target identifiers from a caller with view_other_timesheet but does not apply access_user or verify that a ROLE_TEAMLEAD requester leads a team containing each target user. TimesheetController::cgetAction() adds the resolved users directly to the query while project and customer filtering still permits records on unscoped projects or projects sharing ordinary team membership, allowing a teamlead to retrieve another user's descriptions, timing data, tags, rate, and internalRate even though GET /api/timesheets/{id} would deny access through TimesheetVoter. This issue is fixed in version 2.57.0."}],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.57.0","status":"affected"}]}],"references":[{"url":"https://github.com/kimai/kimai/security/advisories/GHSA-4m8q-55qv-9pwp","name":"https://github.com/kimai/kimai/security/advisories/GHSA-4m8q-55qv-9pwp","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/kimai/kimai/pull/5929","name":"https://github.com/kimai/kimai/pull/5929","tags":["x_refsource_MISC"]},{"url":"https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849","name":"https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849","tags":["x_refsource_MISC"]},{"url":"https://github.com/kimai/kimai/releases/tag/2.57.0","name":"https://github.com/kimai/kimai/releases/tag/2.57.0","tags":["x_refsource_MISC"]},{"url":"https://www.kimai.org/en/security/ghsa-4m8q-55qv-9pwp","name":"https://www.kimai.org/en/security/ghsa-4m8q-55qv-9pwp","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-15T10:36:02.531Z"},"source":{"advisory":"GHSA-4m8q-55qv-9pwp","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/kimai/kimai/security/advisories/GHSA-4m8q-55qv-9pwp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-15T15:11:18.450514Z","id":"CVE-2026-52819","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-15T15:17:07.990Z"}}]}}}