BREW-DATASETTE-CVE-2025-64481 (CVE-2025-64481)

Vulnerability from osv_homebrew – Published: 2026-08-13 16:42 – Updated: 2026-09-18 15:20 – Source website
VLAI
Summary
Open redirect endpoint in Datasette
Details

Datasette is an open source multi-tool for exploring and publishing data. In versions 0.65.1 and below and 1.0a0 through 1.0a19, deployed instances of Datasette include an open redirect vulnerability. Hits to the path //example.com/foo/bar/ (the trailing slash is required) will redirect the user to https://example.com/foo/bar. This problem has been patched in both Datasette 0.65.2 and 1.0a21. To workaround this issue, if Datasette is running behind a proxy, that proxy could be configured to replace // with / in incoming request URLs.

Severity
2.7 (Low)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "fix": "bump",
        "range_state": "fixed",
        "upstream_fixed_in": "0.65.2"
      },
      "package": {
        "ecosystem": "Homebrew",
        "name": "datasette",
        "purl": "pkg:brew/datasette"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.65.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "confidence": "high",
    "source": "matched",
    "strategy": "git",
    "upstream_evidence": [
      {
        "ecosystem": "GIT",
        "key": "https://github.com/simonw/datasette",
        "name": "https://github.com/simonw/datasette",
        "strategy": "git",
        "subject_version": "0.65.5"
      },
      {
        "ecosystem": "PyPI",
        "key": "pkg:pypi/datasette@0.65.5",
        "name": "datasette",
        "strategy": "registry",
        "subject_version": "0.65.5"
      }
    ]
  },
  "details": "Datasette is an open source multi-tool for exploring and publishing data. In versions 0.65.1 and below and 1.0a0 through 1.0a19, deployed instances of Datasette include an open redirect vulnerability. Hits to the path //example.com/foo/bar/ (the trailing slash is required) will redirect the user to https://example.com/foo/bar. This problem has been patched in both Datasette 0.65.2 and 1.0a21. To workaround this issue, if Datasette is running behind a proxy, that proxy could be configured to replace // with / in incoming request URLs.",
  "id": "BREW-datasette-CVE-2025-64481",
  "modified": "2026-09-18T15:20:51Z",
  "published": "2026-08-13T16:42:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64481.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/simonw/datasette/security/advisories/GHSA-w832-gg5g-x44m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64481"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/simonw/datasette/issues/2429"
    },
    {
      "type": "FIX",
      "url": "https://github.com/simonw/datasette/commit/f257ca6edb64848c3b04b54d41e347c54fe57c05"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open redirect endpoint in Datasette",
  "upstream": [
    "CVE-2025-64481",
    "GHSA-w832-gg5g-x44m",
    "PYSEC-2025-73"
  ]
}



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