{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.74.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5bc93a2a7ab0ebd0a11352bc4968eabeffb18027"
            }
          ],
          "repo": "https://github.com/rclone/rclone",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-945v-v9p3-v5xw"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-732"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79783.json"
  },
  "details": "rclone before 1.74.4 fails to mask special permission bits when applying source-supplied mode metadata in the local backend, allowing attackers to set setuid/setgid bits on attacker-controlled files. When copying with metadata preservation from an untrusted remote, attackers can plant a setuid binary that escalates privileges to root if rclone runs as root, or to the service account user otherwise.",
  "id": "CVE-2026-79783",
  "modified": "2026-08-27T11:30:38.545439690Z",
  "published": "2026-08-25T15:16:11.806Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79783.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/rclone/rclone/security/advisories/GHSA-945v-v9p3-v5xw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-79783"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/rclone-before-privilege-escalation-via-setuid-metadata"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "rclone before 1.74.4 Privilege Escalation via setuid Metadata"
}