{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52821","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-08T18:11:06.661Z","datePublished":"2026-09-15T10:38:16.963Z","dateUpdated":"2026-09-17T14:20:56.384Z"},"containers":{"cna":{"title":"Kimai: Improper Authorization in Kimai Activity Creation with Preset Project Allows Creation Under Unauthorized Projects","problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/kimai/kimai/security/advisories/GHSA-3q6q-26vg-v97x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kimai/kimai/security/advisories/GHSA-3q6q-26vg-v97x"},{"name":"https://github.com/kimai/kimai/pull/5929","tags":["x_refsource_MISC"],"url":"https://github.com/kimai/kimai/pull/5929"},{"name":"https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849","tags":["x_refsource_MISC"],"url":"https://github.com/kimai/kimai/commit/976d38e8a4485a1c923ee7b5841849e91a06e849"},{"name":"https://github.com/kimai/kimai/releases/tag/2.57.0","tags":["x_refsource_MISC"],"url":"https://github.com/kimai/kimai/releases/tag/2.57.0"},{"name":"https://www.kimai.org/en/security/ghsa-3q6q-26vg-v97x","tags":["x_refsource_MISC"],"url":"https://www.kimai.org/en/security/ghsa-3q6q-26vg-v97x"}],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.57.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-15T10:38:16.963Z"},"descriptions":[{"lang":"en","value":"Kimai is an open-source time tracking application. Prior to 2.57.0, GET or POST requests to /en/admin/activity/create/{project} and /en/admin/project/create/{customer} require only the generic create_activity or create_project capability and do not verify edit access to the supplied Project or Customer object. A user who knows a valid project.id or customer identifier can use the preset-parent creation logic in src/Controller/ActivityController.php or src/Controller/ProjectController.php to persist a new child business object under an unauthorized parent, polluting project or customer configuration and influencing later time-entry, rate, reporting, and billing behavior. This issue is fixed in version 2.57.0."}],"source":{"advisory":"GHSA-3q6q-26vg-v97x","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-17T14:20:34.001069Z","id":"CVE-2026-52821","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2026-09-17T14:20:56.384Z"}}]}}