{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e0c3e5748c1c3a1a0cab7790872bf0b3ec648bb4"
            }
          ],
          "repo": "https://github.com/pinchtab/pinchtab",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-qwxp-6qf9-wr4m"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33081.json"
  },
  "details": "PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. Versions 0.8.2 and below have a Blind SSRF vulnerability in the /download endpoint. The validateDownloadURL() function only checks the initial user-supplied URL, but the embedded Chromium browser can follow attacker-controlled redirects/navigations to internal network addresses after validation. Exploitation requires security.allowDownload=true (disabled by default), limiting real-world impact. An attacker-controlled page can use JavaScript redirects or resource requests to make the browser reach internal services from the PinchTab host, resulting in a blind Server-Side Request Forgery (SSRF) condition against internal-only services. The issue has been patched in version 0.8.3.",
  "id": "CVE-2026-33081",
  "modified": "2026-04-01T23:10:23.379508134Z",
  "published": "2026-03-20T09:05:01.753Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pinchtab/pinchtab/releases/tag/v0.8.3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33081.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pinchtab/pinchtab/security/advisories/GHSA-qwxp-6qf9-wr4m"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33081"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PinchTab has Blind SSRF via browser-side redirect bypass in /download URL validation"
}