Vulnerability details
CVE-2026-85076
Cronicle: Privilege Escalation via Arbitrary Environment Variable Injection through Event Params (Incomplete Fix for CVE-2026-39401)
Official description
Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.124, an authenticated non-admin with run_events, create_events, or edit_events privilege can supply undeclared keys in event params through api_create_event, api_update_event, or api_run_event. lib/api.js and lib/api/event.js validate the parameter object without restricting its keys, and lib/job.js uppercases those keys and applies them to the child process environment after administrator-defined plugin variables. A key that collides with a security-sensitive environment variable can therefore override the plugin execution context and may cause privilege escalation, arbitrary code execution, data access, or service disruption depending on the plugin and runtime. This issue is fixed in version 0.9.124.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| jhuckaby | Cronicle | < 0.9.124 | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-9w42-v8cj-68gq x_refsource_CONFIRM
- https://github.com/jhuckaby/Cronicle/commit/da0228fdea9bc57c09876c00ea0feda70a0ef110 x_refsource_MISC
- https://github.com/jhuckaby/Cronicle/releases/tag/v0.9.124 x_refsource_MISC
Details
- Published
- 2026-11-05
- Last updated
- 2026-11-09
- State
- Published
- Assigner (CNA)
- GitHub_M
- Kolun priority
- 22 · Low
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-863Incorrect Authorization
- CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')