Plaintext Logging Vulnerability in OpenPanel by OpenPanel
CVE-2026-93982

4.8MEDIUM

Key Information:

Vendor

Openpanel-dev

Status
Openpanel
Vendor
CVE Published:
19 September 2026

What is CVE-2026-93982?

A vulnerability in OpenPanel allows Model Context Protocol authentication tokens to be logged in plaintext due to improper handling of URL query parameters. This flaw enables attackers with access to application logs to capture sensitive base64-encoded credentials. By exploiting this vulnerability, unauthorized individuals could potentially replay MCP requests, leading to unauthorized access to sensitive project analytics and data. Organizations using affected versions of OpenPanel should take immediate action to mitigate this risk.

Affected Version(s)

openpanel 0

References

https://github.com/Openpanel-dev/openpanel/security/advis...
vendor-advisory
https://www.vulncheck.com/advisories/openpanel-mcp-authen...
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CaptBoykin
.