PinchTab: SSRF with Full Response Exfiltration via Download Handler

published 2026-03-06 8 mo ago modified 2026-06-17 4 mo ago also GHSA-rw8p-c6hf-q3pg , GO-2026-4631 , EUVD-2026-10167

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits: 0; none known

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.

Patch / fix

fixed in 3 distros 2

go github.com/pinchtab/pinchtab/cmd/pinchtab 0.7.7
go github.com/pinchtab/pinchtab 0.7.7
pinchtab pinchtab 0.7.7

suse opensuse

govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1

suse advisories SUSE-SU-2026:1042-1

govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1

opensuse advisories openSUSE-SU-2026:21483-1

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 8 mo ago (2026-03-10)

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/pinchtab/pinchtab/security/advisories/GHSA-rw8p-c6hf-q3pg referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
go	github.com/pinchtab/pinchtab/cmd/pinchtab	<0.7.7	0.7.7
go	github.com/pinchtab/pinchtab	<0.7.7	0.7.7

Affected products

pinchtab pinchtab

Classification

Weakness

CWE-918 Server-Side Request Forgery

References

github.com /pinchtab/pinchtab/security/advisories/GHSA-rw8p-c6hf-q3pg
web, exploit, vendor-advisory, advisory
nvd.nist.gov /vuln/detail/CVE-2026-30834
advisory
github.com /pinchtab/pinchtab
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary