jhuckaby Cronicle up to 0.9.123 Event API lib/api.js command injection

Summaryinfo

A vulnerability described as critical has been identified in jhuckaby Cronicle up to 0.9.123. Affected by this issue is some unknown functionality of the file lib/api.js of the component Event API. Executing a manipulation can lead to command injection. The identification of this vulnerability is CVE-2026-85076. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in jhuckaby Cronicle up to 0.9.123. It has been declared as critical. This vulnerability affects an unknown code block of the file lib/api.js of the component Event API. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-85076 since 09/02/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 0.9.124 eliminates this vulnerability.

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Productinfo

Vendor

• jhuckaby

Name

• Cronicle

Version

• 0.9.123

Website

• Product: https://github.com/jhuckaby/Cronicle/

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