{"id":"CVE-2026-52827","state":"PUBLISHED","title":"Kimai: Two-factor authentication bypass on the Kimai API","description":"Kimai is an open-source time tracking application. Prior to 2.59.0, the KIMAI_SESSION cookie issued after password verification but before TOTP completion is accepted by every /api route because config/packages/security.yaml protects the API with IS_AUTHENTICATED and App\\API\\Authentication\\ApiRequestMatcher routes an existing session through the main firewall. A Scheb TwoFactorToken satisfies that access rule, and App\\Voter\\ApiVoter grants API access to its User, allowing an attacker with a valid account password to use authenticated REST API operations without entering the second factor even though web routes remain blocked. This issue is fixed in version 2.59.0.","publishedAt":"2026-09-15T10:45:03.605Z","updatedAt":"2026-09-16T16:08:20.250Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["kimai kimai"],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.59.0","status":"affected"}]}],"references":["https://github.com/kimai/kimai/security/advisories/GHSA-v8hx-4vx8-wc96","https://github.com/kimai/kimai/pull/5957","https://github.com/kimai/kimai/commit/87c85270a98899e6545108cbb9f41103ec6ea312","https://github.com/kimai/kimai/releases/tag/2.59.0","https://www.kimai.org/en/security/ghsa-v8hx-4vx8-wc96"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/52xxx/CVE-2026-52827.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52827","state":"PUBLISHED","datePublished":"2026-09-15T10:45:03.605Z","dateUpdated":"2026-09-16T16:08:20.250Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-08T18:11:06.662Z"},"containers":{"cna":{"title":"Kimai: Two-factor authentication bypass on the Kimai API","descriptions":[{"lang":"en","value":"Kimai is an open-source time tracking application. Prior to 2.59.0, the KIMAI_SESSION cookie issued after password verification but before TOTP completion is accepted by every /api route because config/packages/security.yaml protects the API with IS_AUTHENTICATED and App\\API\\Authentication\\ApiRequestMatcher routes an existing session through the main firewall. A Scheb TwoFactorToken satisfies that access rule, and App\\Voter\\ApiVoter grants API access to its User, allowing an attacker with a valid account password to use authenticated REST API operations without entering the second factor even though web routes remain blocked. This issue is fixed in version 2.59.0."}],"affected":[{"vendor":"kimai","product":"kimai","versions":[{"version":"< 2.59.0","status":"affected"}]}],"references":[{"url":"https://github.com/kimai/kimai/security/advisories/GHSA-v8hx-4vx8-wc96","name":"https://github.com/kimai/kimai/security/advisories/GHSA-v8hx-4vx8-wc96","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/kimai/kimai/pull/5957","name":"https://github.com/kimai/kimai/pull/5957","tags":["x_refsource_MISC"]},{"url":"https://github.com/kimai/kimai/commit/87c85270a98899e6545108cbb9f41103ec6ea312","name":"https://github.com/kimai/kimai/commit/87c85270a98899e6545108cbb9f41103ec6ea312","tags":["x_refsource_MISC"]},{"url":"https://github.com/kimai/kimai/releases/tag/2.59.0","name":"https://github.com/kimai/kimai/releases/tag/2.59.0","tags":["x_refsource_MISC"]},{"url":"https://www.kimai.org/en/security/ghsa-v8hx-4vx8-wc96","name":"https://www.kimai.org/en/security/ghsa-v8hx-4vx8-wc96","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-15T10:45:03.605Z"},"source":{"advisory":"GHSA-v8hx-4vx8-wc96","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T16:08:13.022512Z","id":"CVE-2026-52827","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":"2026-09-16T16:08:20.250Z"}}]}}}