SB2026110480 - Incorrect permission assignment for critical resource in Cryptomator

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Main Vulnerability Database SB2026110480

SB2026110480 - Incorrect permission assignment for critical resource in Cryptomator

Published: November 4, 2026

Security Bulletin ID SB2026110480
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Incorrect permission assignment for critical resource (CVE-ID: N/A)

CWE-ID: CWE-732 - Incorrect Permission Assignment for Critical Resource

CVSSv4: 7.1 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to execute arbitrary Java code with another local user's permissions.

The vulnerability exists due to incorrect permission assignment in the Windows installer when preserving a pre-existing machine-wide admin configuration file without resetting its ownership or access permissions. A local user can plant C:ProgramDataCryptomatorconfig.properties before initial installation or an upgrade introducing admin configuration support, then use the cryptomator.pluginDir setting to load attacker-controlled plugin code when another user starts Cryptomator.


Remediation

Install update from vendor's website.

References