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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2026-88924

Gvfs: gvfs-admin socket ownership race permits local root

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Status
Published
Published
Updated
Assigning organization
redhat

Description

A flaw was found in the admin backend of gvfs. The privileged gvfsd-admin daemon changes the ownership of newly created private D-Bus sockets by calling the link-following chown() function on a pathname inside a user-controlled directory. A local attacker can exploit this via a Time-of-Check Time-of-Use (TOCTOU) race condition and exchange the socket pathname with a symbolic link pointing to an arbitrary root-owned file (such as /etc/pam.d/su). The daemon subsequently follows the symlink and changes the ownership of the targeted root-owned file to the attacker's user ID. This allows an authenticated local attacker to modify critical system files, leading to a full local privilege escalation to root.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

GNOME gvfs

Default version status: unaffected

  • 1.48.1 to < 1.62.0affected
  • 1.48.1 to < 1.60.3affected
  • 1.48.1 to < 1.58.5affected

Red Hat Red Hat Enterprise Linux 10

Default version status: affected

  • 0:1.54.4-4.el10_2.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

Default version status: affected

  • 0:1.54.4-2.el10_0.2 to < *unaffected

Red Hat Red Hat Enterprise Linux 9

Default version status: affected

  • 0:1.48.1-8.el9_8.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Default version status: affected

  • 0:1.48.1-4.el9_2.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Default version status: affected

  • 0:1.48.1-4.el9_4.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support

Default version status: affected

  • 0:1.48.1-6.el9_6.1 to < *unaffected

Red Hat Red Hat Enterprise Linux 6

Default version status: affected

Red Hat Red Hat Enterprise Linux 7

Default version status: affected

Red Hat Red Hat Enterprise Linux 8

Default version status: unaffected

References