CVE-2026-22682 OpenHarness Improper Access Control via File Tools
Attackers can bypass file access controls in OpenHarness to read or modify sensitive local files by exploiting inconsistent permission checks in file tools.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-22682?
CVE-2026-22682 is a high-severity missing authorization vulnerability in HKUDS OpenHarness, published on 7 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
OpenHarness prior to commit 166fcfe contains an improper access control vulnerability in built-in file tools due to inconsistent parameter handling in permission enforcement, allowing attackers who can influence agent tool execution to read arbitrary local files outside the intended repository scope. Attackers can exploit the path parameter not being passed to the PermissionChecker in read_file, write_file, edit_file, and notebook_edit tools to bypass deny rules and access sensitive files such as configuration files, credentials, and SSH material, or create and overwrite files in restricted host paths in full_auto mode.
Weakness: CWE-863
Which versions are affected by CVE-2026-22682?
How do I fix CVE-2026-22682?
No fix has been published for CVE-2026-22682 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-22682 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22682 exists.
Sources
Also known as GHSA-43rx-99w7-v5fh.