---
id: CVE-2026-94445
title: "A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.\n\n\n\nDisjointly, one of the three possible paths to invoke\_go vet\_on the playground host did not correctl…"
summary: "A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.\n\n\n\nDisjointly, one of the three possible paths to invoke\_go vet\_on the playground host did not correctl…"
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-20
vendor: golang.org/x/playground
product: golang.org/x/playground
affected:
  - golang.org/x/playground < 0.0.0-20260924211604-6d73cff14c17
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T18:17:33.730'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94445'
references:
  - url: 'https://go.dev/cl/838485'
    label: security@golang.org
  - url: 'https://go.dev/issue/81737'
    label: security@golang.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-25T17:08:10.870774Z'
ingestedAt: '2026-09-25T17:13:14.016Z'
---

## Overview

A malicious txtar could escape the intended execution context and force arbitrary writes to the playground host's trusted filesystem.



Disjointly, one of the three possible paths to invoke go vet on the playground host did not correctly restrict the execution environment. This permitted a Go process to make a read for an environment configuration file rooted in the playground host's $HOME.



Together, a well-crafted go env file and the go vet invocation could lead to remote code execution in the playground host itself.




This does not affect users of go.dev/play directly; however, it may affect independent deployments of golang.org/x/playground.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.