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.
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Wed, 28 Oct 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Jhuckaby
Jhuckaby cronicle |
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| Vendors & Products |
Jhuckaby
Jhuckaby cronicle |
Tue, 27 Oct 2026 22:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Cronicle: Non-admin uid/gid injection in create_event/update_event → run-as-arbitrary-user (incl. root) — sibling of CVE-2026-39401 | |
| Weaknesses | CWE-269 CWE-862 CWE-915 |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-27T22:30:09.563Z
Reserved: 2026-06-29T21:54:30.330Z
Link: CVE-2026-58255
No data.
Status : Received
Published: 2026-10-27T23:17:05.990
Modified: 2026-10-27T23:17:05.990
Link: CVE-2026-58255
No data.
OpenCVE Enrichment
Updated: 2026-10-28T00:15:08Z