LeakyCreds
NewInstant webhook alerts now available — notified within seconds of any credential detection.Learn more →
Home / Vulnerability Intelligence / CVE-2026-31836

CVE-2026-31836 - Vulnerability Analysis

HighCVSS: 8.1

Last Updated: March 20, 2026

Checkmate - Privilege Escalation

Published: March 20, 2026Updated: March 20, 2026Remote Exploitable

Overview

Checkmate <= 3.5.1 contains a mass assignment vulnerability in the user profile update endpoint, letting authenticated users escalate privileges to superadmin, bypassing role-based access controls.

Severity & Score

Severity: High
CVSS Score: 8.1
EPSS Score: 0.0%(Probability of exploitation in next 30 days)

Impact

Authenticated users can gain full administrative access, including viewing users, modifying configurations, and accessing sensitive data.

Mitigation

Update to the latest version once a patch is available.

Social Media Activity(2 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Mar 20, 2026

🟠 CVE-2026-31836 - High (8.1) 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 Che... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-31836/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Mar 20, 2026

🟠 CVE-2026-31836 - High (8.1) 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 Che... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-31836/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Details

CVE ID
CVE-2026-31836
Severity
High
CVSS Score
8.1
Type
broken_access_control
Status
new
EPSS
0.0%
Social Posts
2

CWE

  • CWE-269

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Score

0.0%Probability of exploitation in the next 30 days