{"id":"CVE-2026-58255","aliases":[],"title":"Cronicle: Non-admin uid/gid injection in create_event/update_event → run-as-arbitrary-user (incl. root) — sibling of CVE-2026-39401","titleSource":"GitHub_M","descriptionSource":"GitHub_M","products":[{"vendor":"jhuckaby","name":"Cronicle","platforms":[],"versions":[{"version":"< 0.9.121","status":"affected"}],"source":"GitHub_M","url":"https://www.cve.org/CVERecord?id=CVE-2026-58255"}],"remediation":[],"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0.9.121.","severity":"high","score":8.8,"published":"2026-10-27T22:30:09.563Z","modified":"2026-10-28T16:12:46.274Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-9xpg-9w3g-mpwj","https://github.com/jhuckaby/Cronicle/commit/f3d3550d0f3fe89bab52d3788f0db1dd10860df2","https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.121"],"sources":[{"name":"CVE","id":"CVE-2026-58255","modified":"2026-10-28T16:12:46.274Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-58255"}],"assessments":[{"source":"GitHub_M","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-29T01:25:32.580Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}