CVE-2026-122235

Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink

Published Nov 4, 2026 CVSS 4.0 · 5.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Janhq
Janhq jan
Vendors & Products Janhq
Janhq jan
Type Values Removed Values Added
Description 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.
Title Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 5.7, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 9, 2026, 4:57 PM
Reserved
Nov 4, 2026, 8:51 PM
Status
Deferred
Published
Nov 4, 2026, 9:18 PM
Modified
Nov 12, 2026, 9:36 PM