CVE-2026-39401: CWE-862: Missing Authorization in jhuckaby Cronicle
CVE-2026-39401 is a medium severity vulnerability in jhuckaby Cronicle versions prior to 0.9.111. It involves missing authorization checks when jb child processes include an update_event key in their JSON output. This allows a low-privilege user who can create and run events to modify any event property, such as webhook URLs and notification emails. The vulnerability is fixed in version 0.9.111.
AI Analysis
Technical Summary
Cronicle is a multi-server task scheduler with a web UI. Before version 0.9.111, the server applies update_event keys from jb child processes' JSON output directly to the parent event's stored configuration without authorization checks. This missing authorization (CWE-862) enables low-privilege users with event creation and execution rights to alter any event property, including sensitive fields like webhook URLs and notification emails. The issue is resolved in version 0.9.111.
Potential Impact
An attacker with low privileges who can create and run events can modify event configurations arbitrarily. This could lead to unauthorized changes in webhook URLs and notification emails, potentially redirecting notifications or triggering unintended actions. The CVSS 4.0 base score is 5.3 (medium severity), reflecting network attack vector, low privileges required, and no user interaction needed.
Mitigation Recommendations
Upgrade Cronicle to version 0.9.111 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is not explicitly stated but the fix is included in the specified version update.
CVE-2026-39401: CWE-862: Missing Authorization in jhuckaby Cronicle
Description
CVE-2026-39401 is a medium severity vulnerability in jhuckaby Cronicle versions prior to 0.9.111. It involves missing authorization checks when jb child processes include an update_event key in their JSON output. This allows a low-privilege user who can create and run events to modify any event property, such as webhook URLs and notification emails. The vulnerability is fixed in version 0.9.111.
CVSS v4.0
Score 5.3medium
Affected software
pkg:github/jhuckaby/CronicleRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Cronicle is a multi-server task scheduler with a web UI. Before version 0.9.111, the server applies update_event keys from jb child processes' JSON output directly to the parent event's stored configuration without authorization checks. This missing authorization (CWE-862) enables low-privilege users with event creation and execution rights to alter any event property, including sensitive fields like webhook URLs and notification emails. The issue is resolved in version 0.9.111.
Potential Impact
An attacker with low privileges who can create and run events can modify event configurations arbitrarily. This could lead to unauthorized changes in webhook URLs and notification emails, potentially redirecting notifications or triggering unintended actions. The CVSS 4.0 base score is 5.3 (medium severity), reflecting network attack vector, low privileges required, and no user interaction needed.
Mitigation Recommendations
Upgrade Cronicle to version 0.9.111 or later, where this vulnerability is fixed. No other official remediation or temporary fixes are documented. Patch status is not explicitly stated but the fix is included in the specified version update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-06T22:06:40.516Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d5698eaaed68159a5d8dfc
Added to database: 04/07/2026, 20:31:10 UTC
Last enriched: 04/15/2026, 15:53:20 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 113
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