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Back to active CVEs
High · CVSS 7.0CVE-2026-88924

Gvfs: gvfs-admin socket ownership race permits local rootCVE-2026-88924

Answer in brief

CVE-2026-88924 records a High severity (CVSS 7.0) vulnerability in Gvfs: gvfs-admin socket ownership race permits local root. The current sources do not mark it as known exploited. The current feed maps GNOME/gvfs (generic), GNOME/gvfs (generic), Red Hat/gvfs (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 10, 2026Updated Oct 20, 2026Source checked Oct 25, 2026First seen by HOL Sep 10, 2026Material review Oct 20, 2026
Upstream Advisory

Record context

Vulnerability class
Privilege Escalation
EPSS
Not reported
CWE IDs
CWE-367
Source
CVE List V5
Source checked
Oct 25, 2026
References
9 linked sources
Open source record

Key facts

Risk
High · CVSS 7.0
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps GNOME/gvfs (generic), GNOME/gvfs (generic), Red Hat/gvfs (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
GNOME/gvfsgeneric>=1.48.1 <**
GNOME/gvfsgeneric>=1.48.1 <1.62.0 || >=1.48.1 <1.60.3 || >=1.48.1 <1.58.51.62.0, 1.60.3, 1.58.5
Red Hat/gvfsgeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for GNOME/gvfs, GNOME/gvfs, Red Hat/gvfs.
  2. 2Review the reported fix. Source-reported workaround: To mitigate this issue, adjust Polkit rules to require password authentication to start gvfsd-admin or remove execute permissions of the gvfsd-admin binary to prevent execution.

Evidence timeline and material changes

  1. Published upstream

    Sep 10, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 10, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • Source referencegitlab.gnome.org
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.