Cronicle CVEs and Security Vulnerabilities

CVE-2026-39400

Stored XSS via Job HTML/Table Output in Cronicle

Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.111, a non-admin user with create_events and run_events privileges can inject arbitrary JavaScript through job output fields (html.content, html.title, table.header, table.rows, table.caption). The server stores this data without sanitization, and the client renders it via innerHTML on the Job Details page. This vulnerability is fixed in 0.9.111.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Cronicle Jhuckaby

Products

Cronicle Cronicle

CVE-2026-39401

Privilege Escalation via update_event Job Output in Cronicle

Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.111, jb child processes can include an update_event key in their JSON output. The server applies this directly to the parent event's stored configuration without any authorization check. A low-privilege user who can create and run events can modify any event property, including webhook URLs and notification emails. This vulnerability is fixed in 0.9.111.