Jan from 0.8.5 before 0.8.8 contains a workspace guard bypass vulnerability in the agent-tools gate.rs that allows
Source GCVE Database
Not known to be exploited · CVSS 5.7 Medium : upgrade to 0.8.8 when convenient.
Data as of 4 Nov 2026, 22:37 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.7 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.7 |
- Patch
- Available – fixed in 0.8.8
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Upgrade jan to 0.8.8.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| janhqjan | Affected
| Fixed in
|
GitHubjanpkg:github/janOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, avoid using vulnerable versions and restrict the use of untrusted repositories to mitigate exploitation risk.
Description
Jan versions from 0.8.5 up to but not including 0.8.8 contain a vulnerability in the agent-tools gate.rs component that allows attackers to bypass workspace guards. This flaw enables writing files outside the intended workspace via dangling symlinks, potentially allowing attackers to create or modify sensitive files such as ~/.ssh/authorized_keys on the host system by supplying a malicious repository and using prompt injection.
References
- github.com/janhq/jan/security/advisories/GHSA-7j4g-mj5j-p842 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-122235 (opens in a new tab)
- github.com/janhq/jan/pull/9424 (opens in a new tab)
- github.com/janhq/jan/commit/840c33e65182ba9975d32f710c5d111e25444b65 (opens in a new tab)
- github.com/janhq/jan/releases/tag/v0.8.8 (opens in a new tab)
- vulncheck.com/advisories/jan-0.8.5-before-0.8.8-workspace-guard-bypass-via-dangling-symlink (opens in a new tab)