{"id":"CVE-2026-58255","published":"2026-10-27T23:17:05.990","lastModified":"2026-10-27T23:17:05.990","description":"Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.121, a non-administrator user or scoped API key with `create_events` and `run_events` privileges can inject top-level `uid` and `gid` fields through `/api/app/create_event` or `/api/app/update_event`. In `lib/api.js`, `requireValidEventData` uses `validateOptionalParams` as a partial allow-list that silently passes unknown keys, storing the injected fields verbatim. In `lib/job.js`, `launchJob` copies the whole event into the job, and a plugin `uid` overrides the event `uid` only when the plugin defines one. The default `shellplug` and `urlplug` plugins do not define a `uid`, so the event-controlled identity survives into child-process launch. On a root-daemon installation, this lets a low-privileged user run jobs as arbitrary users, including root, bypassing the otherwise administrator-only run-as-user control. This API-side event injection is distinct from the job-output `uid`/`gid` injection addressed by CVE-2026-39401. This issue is fixed in version 0.9.121.","cvssScore":8.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-269","CWE-862","CWE-915"],"vendors":[],"products":[],"references":[{"url":"https://github.com/jhuckaby/Cronicle/commit/f3d3550d0f3fe89bab52d3788f0db1dd10860df2","tags":[]},{"url":"https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.121","tags":[]},{"url":"https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-9xpg-9w3g-mpwj","tags":[]}],"exploitRefs":[{"url":"https://github.com/jhuckaby/Cronicle/commit/f3d3550d0f3fe89bab52d3788f0db1dd10860df2","tags":[]},{"url":"https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.121","tags":[]},{"url":"https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-9xpg-9w3g-mpwj","tags":[]}],"hasPoc":true,"ai":null}