{"id":"CVE-2026-58255","title":"Cronicle: Non-admin uid/gid injection in create_event/update_event → run-as-arbitrary-user (incl. root) — sibling of CVE-2026-39401","summary":"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` field…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-269","CWE-862","CWE-915"],"vendor":"jhuckaby","product":"Cronicle","affected":["Cronicle < 0.9.121"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-28T14:58:21.748464Z"},"published":"2026-10-27","updated":"2026-10-28","sourceUpdated":"2026-10-28T16:12:46.274Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-58255","references":[{"url":"https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-9xpg-9w3g-mpwj","label":"https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-9xpg-9w3g-mpwj"},{"url":"https://github.com/jhuckaby/Cronicle/commit/f3d3550d0f3fe89bab52d3788f0db1dd10860df2","label":"https://github.com/jhuckaby/Cronicle/commit/f3d3550d0f3fe89bab52d3788f0db1dd10860df2"},{"url":"https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.121","label":"https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.121"}],"tags":["cve.org"],"epss":0.00415,"epssPercentile":0.35681,"ingestedAt":"2026-10-27T22:58:58.458Z","slug":"CVE-2026-58255","body":"## Overview\n\nCronicle 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.\n\n## Affected\n\n- `Cronicle < 0.9.121`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}