CVE-2026-39401

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v	Exploit Vendor Advisory
https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cronicle:cronicle:*:*:*:*:*:*:*:*

History

15 Apr 2026, 20:23

Type	Values Removed	Values Added
First Time		Cronicle Cronicle cronicle
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
References	~~() https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v -~~	() https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v - Exploit, Vendor Advisory
CPE		cpe:2.3:a:cronicle:cronicle::::::::

08 Apr 2026, 17:21

Type	Values Removed	Values Added
References	~~() https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v -~~	() https://github.com/jhuckaby/Cronicle/security/advisories/GHSA-5j3v-cq96-xw6v -

07 Apr 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 21:17

Updated : 2026-04-15 20:23

NVD link : CVE-2026-39401

Mitre link : CVE-2026-39401

CVE.ORG link : CVE-2026-39401

JSON object : View

Products Affected

cronicle

cronicle

CWE

CWE-862

Missing Authorization

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