CVE-2026-31836 | bluewave-labs Checkmate up to 3.5.1 Role-Based Access Control improper authorization (GHSA-6368-x7wr-wpm2)

VDB-352122 · CVE-2026-31836 · GHSA-6368-X7WR-WPM2 BLUEWAVE-LABS CHECKMATE UP TO 3.5.1 ROLE-BASED ACCESS CONTROL IMPROPER AUTHORIZATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.0 $0-$5k 1.39+ Summaryinfo A vulnerability categorized as critical has been discovered in bluewave-labs Checkmate up to 3.5.1. Affected by this issue is some unknown functionality of the component Role-Based Access Control. The manipulation results in improper authorization. This vulnerability is reported as CVE-2026-31836. The attack can be launched remotely. No exploit exists. A patch should be applied to remediate this issue. Detailsinfo A vulnerability was found in bluewave-labs Checkmate up to 3.5.1. It has been classified as critical. Affected is an unknown functionality of the component Role-Based Access Control. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: Checkmate is an open-source, self-hosted tool designed to track and monitor server hardware, uptime, response times, and incidents in real-time with beautiful visualizations. In versions from 3.5.1 and prior, a mass assignment vulnerability in Checkmate's user profile update endpoint allows any authenticated user to escalate their privileges to superadmin, bypassing all role-based access controls. An attacker can modify their user role to gain complete administrative access to the application, including the ability to view all users, modify critical configurations, and access sensitive system data. At time of publication, there are no publicly available patches. The advisory is available at github.com. This vulnerability is traded as CVE-2026-31836 since 03/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project. Applying a patch is able to eliminate this problem. Productinfo Vendor bluewave-labs Name Checkmate Version 3.5.0 3.5.1 Website Product: https://github.com/bluewave-labs/Checkmate/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.2 VulDB Meta Temp Score: 7.0 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.1 CNA Vector (GitHub_M): 🔒 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: Improper authorization CWE: CWE-285 / CWE-266 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: Patch Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/09/2026 CVE reserved 03/20/2026 +11 days Advisory disclosed 03/20/2026 +0 days VulDB entry created 03/20/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-6368-x7wr-wpm2 Status: Confirmed CVE: CVE-2026-31836 (🔒) GCVE (CVE): GCVE-0-2026-31836 GCVE (VulDB): GCVE-100-352122 Entryinfo Created: 03/20/2026 23:27 Changes: 03/20/2026 23:27 (64) Complete: 🔍 Cache ID: 99:483:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸