pgweb through 0.17.0 Missing Authorization on Direct Connect Endpoint

{
  "id": "6ab01740c91cd0c45f8e107213448426db7e8698865a552f2a60ca48c7566987",
  "url": "https://osv.dev/vulnerability/CVE-2026-91924",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "pgweb through 0.17.0 Missing Authorization on Direct Connect Endpoint",
    "summary": "pgweb through 0.17.0 leaves the POST /api/connect endpoint unguarded when connect-backend authorization is configured, allowing attackers to supply arbitrary database connection strings. Attackers can bypass the resource-to-database mapping by providing a custom session identifier and connection URL to access unauthorized databases and internal services.",
    "evidence": "osv:CVE-2026-91924",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-91924",
      "aliases": [
        "CVE-2026-91924"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sosedoff/pgweb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "6b0b0244d1aefd6971999b03481eeeaa4ec7cf55"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.17.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.17.0"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.17.0",
            "v0.16.2",
            "v0.16.1",
            "v0.16.0-20240907",
            "v0.16.0",
            "v0.15.0",
            "v0.14.3",
            "v0.14.2",
            "v0.14.1",
            "v0.14.0",
            "v0.13.1",
            "v0.13.0",
            "v0.12.0",
            "v0.11.12",
            "v0.11.11",
            "v0.11.10",
            "v0.11.9",
            "v0.11.8",
            "v0.11.7",
            "v0.11.6",
            "v0.11.5",
            "v0.11.4",
            "v0.11.3",
            "v0.11.2",
            "v0.11.1",
            "v0.11.0",
            "v0.10.0",
            "v0.9.12",
            "v0.9.11",
            "v0.9.10",
            "v0.9.9",
            "v0.9.8",
            "v0.9.7",
            "v0.9.6",
            "v0.9.5",
            "v0.9.4",
            "v0.9.3",
            "v0.9.2",
            "v0.9.1",
            "v0.9.0",
            "v0.8.0",
            "v0.7.0",
            "v0.6.3",
            "v0.6.2",
            "v0.6.1",
            "v0.6.0",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.1",
            "v0.4.0",
            "v0.3.1",
            "v0.3.0",
            "v0.2.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91924.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.450353313Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91924.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-91924",
        "https://www.vulncheck.com/advisories/pgweb-through-0.17.0-missing-authorization-on-direct-connect-endpoint",
        "https://github.com/sosedoff/pgweb/issues/869",
        "https://github.com/sosedoff/pgweb",
        "https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/api.go",
        "https://github.com/sosedoff/pgweb/blob/6b0b0244d1aefd6971999b03481eeeaa4ec7cf55/pkg/api/routes.go"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91924.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-91924",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499576,
  "published_at": "2026-09-15T11:00:52.39+00:00"
}