{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-39401","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-06T22:06:40.516Z","datePublished":"2026-04-07T20:24:06.418Z","dateUpdated":"2026-04-08T16:14:54.345Z"},"containers":{"cna":{"title":"Privilege Escalation via update_event Job Output in Cronicle","problemTypes":[{"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/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v"}],"affected":[{"vendor":"jhuckaby","product":"Cronicle","versions":[{"version":"< 0.9.111","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-07T20:24:06.418Z"},"descriptions":[{"lang":"en","value":"Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.111, jb child processes can include an update_event key in their JSON output. The server applies this directly to the parent event's stored configuration without any authorization check. A low-privilege user who can create and run events can modify any event property, including webhook URLs and notification emails. This vulnerability is fixed in 0.9.111."}],"source":{"advisory":"GHSA-5j3v-cq96-xw6v","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-08T16:11:30.726704Z","id":"CVE-2026-39401","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"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":"2026-04-08T16:14:54.345Z"}}]}}