CVE-2026-122235: medium-severity vulnerability in janhq jan
Jan 0.8.5 before 0.8.8 Workspace Guard Bypass via Dangling Symlink
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
10Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.7
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.
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
Affected products
janhq · janRelated CVEs — janhq jan
In the same product, most dangerous first.
References
https://github.com/janhq/jan/commit/840c33e65182ba9975d32f710c5d111e25444b65https://github.com/janhq/jan/pull/9424https://github.com/janhq/jan/releases/tag/v0.8.8https://github.com/janhq/jan/security/advisories/GHSA-7j4g-mj5j-p842https://www.vulncheck.com/advisories/jan-0.8.5-before-0.8.8-workspace-guard-bypass-via-dangling-symlink