{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.48.1"
              },
              {
                "fixed": "1.62.0"
              },
              {
                "fixed": "1.60.3"
              },
              {
                "fixed": "1.58.5"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "a971ec4b5c1ff016e7273f2d390248f8c2d65106"
            },
            {
              "fixed": "046d5423ef100255f554eff84388f8ba765a2182"
            },
            {
              "fixed": "bbf41f8a234bef8e51c012d68e78ce43fd8a6751"
            },
            {
              "fixed": "d871ae97ece1168701fa3e650efcdc552aea80a0"
            }
          ],
          "repo": "https://gitlab.gnome.org/gnome/gvfs",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "redhat",
    "cwe_ids": [
      "CWE-367"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88924.json"
  },
  "details": "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.",
  "id": "CVE-2026-88924",
  "modified": "2026-09-18T03:30:21.138820374Z",
  "published": "2026-09-10T14:32:30.644Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://access.redhat.com/downloads/content/package-browser/"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-88924"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88924.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88924"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531456"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/gvfs/-/issues/875"
    },
    {
      "type": "PACKAGE",
      "url": "https://gitlab.gnome.org/GNOME/gvfs"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Gvfs: gvfs-admin socket ownership race permits local root"
}