HTTP Filestore Endpoints Misapply Permissions Across Organizations

{
  "id": "0dbca4b0936f30bcb3390cbd13149f68d50bbe83cc9f57f54afb3f7cfbd9b7c4",
  "url": "https://osv.dev/vulnerability/CVE-2026-6863",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "HTTP Filestore Endpoints Misapply Permissions Across Organizations",
    "summary": "Velociraptor versions prior to 0.76.4 contain a cross organization authorization bypass in the HTTP API. A user with only the reader role in the root organization (the lowest authenticated role, holding only READ_RESULTS permission ) can issue a single authenticated HTTP GET that can read any files from other orgs - even if they have no explicit permissions in the target org. However, the problem does not occur in reverse - a user with read access to a sub org is unable to read from other org or the root org.",
    "evidence": "osv:CVE-2026-6863",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-6863",
      "aliases": [
        "CVE-2026-6863",
        "GHSA-2v93-vp82-cjv8",
        "GO-2026-4997"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/velocidex/velociraptor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "dbd2e69358f3e5b9ed8ad73819fefd77270cf46f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.76.4"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.76.2",
            "v0.76.1-rc1",
            "v0.75",
            "v0.74",
            "v0.73",
            "v0.72",
            "v0.7.0",
            "v0.7.0-rc1",
            "v0.6.8-rc1",
            "v0.6.7-rc1",
            "v0.6.4-rc1",
            "v0.6.3-rc1",
            "v0.6.2-rc1",
            "v0.6.1-rc1",
            "v0.6.0-rc1",
            "v0.5.9-rc1",
            "v0.5.8-rc1",
            "v0.5.7",
            "v0.5.6",
            "v0.5.5-1",
            "v0.5.5",
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.9",
            "v0.4.8",
            "v0.4.7",
            "v0.4.6",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.9",
            "v0.3.8",
            "v0.3.7",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "0.2.9",
            "0.2.8",
            "0.2.7",
            "0.2.6",
            "0.2.5",
            "0.2.4",
            "0.2.3",
            "0.2.2",
            "0.2.1",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6863.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.701334808Z",
      "provider": "osv",
      "references": [
        "https://docs.velociraptor.app/announcements/advisories/cve-2026-6863/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6863.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-6863",
        "https://github.com/Velocidex/velociraptor"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "rapid7",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "0.76.4, 0.75.9"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6863.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-6863",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 506205,
  "published_at": "2026-05-06T14:50:55.631+00:00"
}