PinchTab: SSRF with Full Response Exfiltration via Download Handler
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.
Summary
PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. Prior to version 0.7.7, a Server-Side Request Forgery (SSRF) vulnerability in the /download endpoint allows any user with API access to induce the PinchTab server to make requests to arbitrary URLs, including internal network services and local system files, and exfiltrate the full response content. This issue has been patched in version 0.7.7.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| pinchtab | pinchtab | before 0.7.7 | 0.7.7 | Patch available | CNA |
| — | github.com/pinchtab/pinchtab/cmd/pinchtab (Go) | before 0.7.7 | 0.7.7 | Patch available | GHSA-rw8p-c6hf-q3pg |
- pinchtab Vendorpinchtab Affected before 0.7.7 Fixed in 0.7.7 Patch available CNA
- github.com/pinchtab/pinchtab/cmd/pinchtab (Go) Vendor— Affected before 0.7.7 Fixed in 0.7.7 Patch available GHSA-rw8p-c6hf-q3pg
Remediation
- Fix · CNA pinchtab (pinchtab) Fixed in 0.7.7
- Fix · GHSA-rw8p-c6hf-q3pg github.com/pinchtab/pinchtab/cmd/pinchtab (Go) Fixed in 0.7.7 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-30834
- 2026-10-03 Alias added: GHSA-rw8p-c6hf-q3pg
References
More Pinchtab vulnerabilities
- TI-2026-26005 PinchTab: OS Command Injection via Profile Name in Windows Cleanup Routine Enables Arbitrary Command Execution CVSS 3.1HIGH 7.2
- TI-2026-26003 PinchTab: Unapplied Rate Limiting Middleware Allows Unbounded Brute-Force of API Token CVSS 3.1MEDIUM 6.5
- TI-2026-26004 A PinchTab Security Policy Bypass in /wait Allows Arbitrary JavaScript Execution CVSS 4.0MEDIUM 6.1
- TI-2026-26001 PinchTab has Unauthenticated Blind SSRF in Task Scheduler via Unvalidated callbackUrl CVSS 3.1MEDIUM 5.5
- TI-2026-26002 PinchTab: API Bearer Token Exposed in URL Query Parameter via Server Logs and Intermediary Systems CVSS 3.1MEDIUM 4.3
- TI-2026-25523 PinchTab has Blind SSRF via browser-side redirect bypass in /download URL validation CVSS 3.1MEDIUM 5.8
Sources
- CVE-2026-30834 · CVE Program
- CVE-2026-30834 · NVD
- FIRST EPSS
- GHSA-rw8p-c6hf-q3pg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences