CVE-2026-109569 sandboxed.sh through 1.3.0 Container Escape via nsenter Missing Root Namespace
Attackers can escape container isolation to read and modify host files due to missing root namespace flags in nsenter usage.
- 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-2026-109569?
CVE-2026-109569 is a critical path traversal vulnerability in Th0rgal sandboxed.sh, published on 12 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
sandboxed.sh through 1.3.0 contains a container escape vulnerability that allows code in container workspaces to access the host filesystem because nsenter attaches without --root. Agent-run code in a container workspace can resolve absolute paths on the host to read and modify host files, bypassing documented isolation.
Weakness: CWE-1188
Which versions are affected by CVE-2026-109569?
How do I fix CVE-2026-109569?
No fix has been published for CVE-2026-109569 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-109569 being exploited?
There is no known exploitation of CVE-2026-109569 in the wild and no public exploit code.
Sources
Also known as GHSA-xqq7-hjvp-gg2f.