CVE-2026-16199 nextlevelbuilder GoClaw credentialed_exec.go ExecTool.Execute improper authorization
Remote attackers can bypass authorization in GoClaw's ExecTool to execute commands, requiring an upgrade to secure the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16199?
CVE-2026-16199 is a medium-severity missing authorization vulnerability in nextlevelbuilder GoClaw, published on 19 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in nextlevelbuilder GoClaw up to 3.13.3-beta.3. This affects the function ExecTool.Execute of the file goclaw/internal/tools/credentialed_exec.go. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used.
Which versions are affected by CVE-2026-16199?
How do I fix CVE-2026-16199?
No fix has been published for CVE-2026-16199 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-2026-16199 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16199 exists.
Sources
Also known as GHSA-gch8-7366-6m32.