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CVE-2026-122235Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink
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.
5.7 MEDIUMEPSS 0.17%Not in KEVNVD: Received
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 5.7 | MEDIUM | 4.0VulnCheck (CNA) | 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 |
| 4.7 | MEDIUM | 3.1VulnCheck (CNA) | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |
Details
- CVE ID
- CVE-2026-122235
- Status
- Received
- Assigner (CNA)
- VulnCheck
- Published
- Nov 4, 2026
- Last modified
- 2026-11-04 21:18 UTC
- Weaknesses
- CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Affected Products
As published by the CNA in the CVE record.
janhqjan1 version range
- 0.8.5 before 0.8.8
References
- github.com https://github.com/janhq/jan/commit/840c33e65182ba9975d32f710c5d111e25444b65
- github.com https://github.com/janhq/jan/pull/9424
- github.com https://github.com/janhq/jan/releases/tag/v0.8.8
- github.com https://github.com/janhq/jan/security/advisories/GHSA-7j4g-mj5j-p842
- vulncheck.com https://www.vulncheck.com/advisories/jan-0.8.5-before-0.8.8-workspace-guard-bypass-via-dangling-symlink