CVE-2026-39401 | jhuckaby Cronicle up to 0.9.110 update_event authorization (GHSA-5j3v-cq96-xw6v / EUVD-2026-19925)

VDB-355944 · CVE-2026-39401 · GHSA-5J3V-CQ96-XW6V JHUCKABY CRONICLE UP TO 0.9.110 UPDATE_EVENT AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.2 $0-$5k 1.47+ Summaryinfo A vulnerability categorized as problematic has been discovered in jhuckaby Cronicle up to 0.9.110. The affected element is the function update_event. The manipulation results in authorization. This vulnerability is cataloged as CVE-2026-39401. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component. Detailsinfo A vulnerability, which was classified as problematic, was found in jhuckaby Cronicle up to 0.9.110. Affected is the function update_event. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on integrity, and availability. CVE summarizes: Cronicle is a multi-server task scheduler and runner, with a web based front-end UI. Prior to 0.9.111, 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. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-39401 since 04/07/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. Upgrading to version 0.9.111 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-19925). Productinfo Vendor jhuckaby Name Cronicle Version 0.9.110 Website Product: https://github.com/jhuckaby/Cronicle/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.4 VulDB Meta Temp Score: 5.2 VulDB Base Score: 5.4 VulDB Temp Score: 5.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Authorization CWE: CWE-862 / CWE-863 / CWE-285 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Cronicle 0.9.111 Timelineinfo 04/07/2026 Advisory disclosed 04/07/2026 +0 days CVE reserved 04/07/2026 +0 days VulDB entry created 04/07/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-5j3v-cq96-xw6v Status: Confirmed CVE: CVE-2026-39401 (🔒) GCVE (CVE): GCVE-0-2026-39401 GCVE (VulDB): GCVE-100-355944 EUVD: 🔒 Entryinfo Created: 04/07/2026 23:31 Updated: 04/07/2026 23:45 Changes: 04/07/2026 23:31 (67), 04/07/2026 23:45 (1) Complete: 🔍 Cache ID: 99:1CF:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸