{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.74.4"
              },
              {
                "introduced": "s3"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5bc93a2a7ab0ebd0a11352bc4968eabeffb18027"
            }
          ],
          "repo": "https://github.com/rclone/rclone",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8v25-v8p6-qf7v"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79781.json"
  },
  "details": "rclone serve s3 before 1.74.4 contains a path traversal vulnerability that allows attackers to read and overwrite root-level files by using dot-dot segments in S3 object keys. Attackers can send requests with object keys like ../root-secret.txt to escape the bucket namespace and access files in the serve root directory.",
  "id": "CVE-2026-79781",
  "modified": "2026-08-27T11:30:42.294664644Z",
  "published": "2026-08-25T15:16:10.471Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79781.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/rclone/rclone/security/advisories/GHSA-8v25-v8p6-qf7v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-79781"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/rclone-serve-s3-path-traversal-via-dot-dot-object-keys"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "rclone serve s3 Path Traversal via dot-dot object keys"
}