{"cve":"CVE-2026-33081","nvd":{"published":"2026-03-20T10:16:18.563","modified":"2026-06-17T10:36:55.323","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","score":3.7},"cwes":["CWE-918"],"references":["https://github.com/pinchtab/pinchtab/releases/tag/v0.8.3","https://github.com/pinchtab/pinchtab/security/advisories/GHSA-qwxp-6qf9-wr4m"],"products":["pinchtab:pinchtab"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33081","score":0.00294,"percentile":0.22013,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-qwxp-6qf9-wr4m","url":"https://osv.dev/vulnerability/GHSA-qwxp-6qf9-wr4m","summary":"PinchTab has a Blind SSRF via browser-side redirect bypass in /download URL validation","modified":"2026-03-23T18:56:18.224056Z","packages":[{"ecosystem":"Go","name":"github.com/pinchtab/pinchtab","purl":"pkg:golang/github.com/pinchtab/pinchtab","ranges":["<0.8.3"],"fixed":["0.8.3"]}]},{"id":"GO-2026-4748","url":"https://osv.dev/vulnerability/GO-2026-4748","summary":"PinchTab has a Blind SSRF via browser-side redirect bypass in /download URL validation in github.com/pinchtab/pinchtab","modified":"2026-03-23T18:45:15.087132Z","packages":[{"ecosystem":"Go","name":"github.com/pinchtab/pinchtab","purl":"pkg:golang/github.com/pinchtab/pinchtab","ranges":["<0.8.3"],"fixed":["0.8.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}