---
id: CVE-2026-122235
title: Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink
summary: >-
  Jan from 0.8.5 before 0.8.8 contains a workspace guard bypass vulnerability in
  the agent-tools gate.rs that allows attackers to write files outside the
  workspace via dangling symlinks. Attackers supplying a malicious repository
  can use p…
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-59
vendor: janhq
product: jan
affected:
  - jan >= 0.8.5 < 0.8.8
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T21:06:42.684Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-122235'
references:
  - url: 'https://github.com/janhq/jan/security/advisories/GHSA-7j4g-mj5j-p842'
    label: GitHub Security Advisory (GHSA-7j4g-mj5j-p842)
  - url: 'https://github.com/janhq/jan/pull/9424'
  - url: >-
      https://github.com/janhq/jan/commit/840c33e65182ba9975d32f710c5d111e25444b65
  - url: 'https://github.com/janhq/jan/releases/tag/v0.8.8'
    label: jan v0.8.8 Release Notes
  - url: >-
      https://www.vulncheck.com/advisories/jan-0.8.5-before-0.8.8-workspace-guard-bypass-via-dangling-symlink
    label: >-
      VulnCheck Advisory: Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via
      Dangling Symlink
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.591Z'
epss: 0.0017
epssPercentile: 0.0641
---

## Overview

Jan from 0.8.5 before 0.8.8 contains a workspace guard bypass vulnerability in the agent-tools gate.rs that allows attackers to write files outside the workspace via dangling symlinks. Attackers supplying a malicious repository can use prompt injection to make the write or edit tools follow symlinks, creating files like ~/.ssh/authorized_keys on the host.

## Affected

- `jan >= 0.8.5 < 0.8.8`

## Remediation

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