Vulnerability · Published Nov 4, 2026 · Assigned by VulnCheck
CVE-2026-122235Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink
Medium 4.7
In plain English
A medium-severity security flaw in jan from janhq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 93.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
References
- GitHub Security Advisory (GHSA-7j4g-mj5j-p842) vendor-advisory
- https://github.com/janhq/jan/pull/9424 patch, issue-tracking
- https://github.com/janhq/jan/commit/840c33e65182ba9975d32f710c5d111e25444b65 patch
- jan v0.8.8 Release Notes release-notes
- VulnCheck Advisory: Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink third-party-advisory