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SCA: security update for github.com/pinchtab/pinchtab (GHSA-mrqc-3276-74f8)

medium Tenable Cloud Security Plugin ID 439180

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab
 `v0.7.8` through `v0.8.3` accepted the API token from a `token` URL query parameter in addition to the
 `Authorization` header. When a valid API credential is sent in the URL, it can be exposed through request
 URIs recorded by intermediaries or client-side tooling, such as reverse proxy access logs, browser
 history, shell history, clipboard history, and tracing systems that capture full URLs. This issue is an
 unsafe credential transport pattern rather than a direct authentication bypass. It only affects
 deployments where a token is configured and a client actually uses the query-parameter form. PinchTab's
 security guidance already recommended `Authorization: Bearer <token>`, but `v0.8.3` still accepted
 `?token=` and included first-party flows that generated and consumed URLs containing the token. This was
 addressed in v0.8.4 by removing query-string token authentication and requiring safer header- or session-
 based authentication flows. (CVE-2026-33620)

Solution

Update the github.com/pinchtab/pinchtab library and its related packages to version 0.8.4 or later.

See Also

https://github.com/advisories/GHSA-mrqc-3276-74f8

Plugin Details

Severity: Medium

ID: 439180

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 3/25/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2026-33620

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/24/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-33620

cwe: CWE-598