SB2026080907 - Debian update for udisks2

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Main Vulnerability Database SB2026080907

SB2026080907 - Debian update for udisks2

Published: August 9, 2026

Security Bulletin ID SB2026080907
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Missing Authorization (CVE-ID: CVE-2026-7867)

CWE-ID: CWE-862 - Missing Authorization

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to missing authorization in the Filesystem.Mount D-Bus method handler when processing a caller-controlled as-user option for fstab-managed block devices. A local user can supply a spoofed as-user value to escalate privileges.

Exploitation requires an fstab entry for a udisks2-visible block device with at least one of the x-udisks-auth, user, or users mount options.


Remediation

Install update from vendor's website.

References