CVE-2026-15626 nextlevelbuilder GoClaw ACP ToolBridge Workspace tool_bridge.go writeFile path traversal

Medium 5.3 Published Updated

Remote attackers can exploit a path traversal flaw in the GoClaw ACP ToolBridge to read or modify arbitrary files on 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-2026-15626?

CVE-2026-15626 is a medium-severity path traversal vulnerability in nextlevelbuilder GoClaw, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was determined in nextlevelbuilder GoClaw 3.13.3-beta.3. This affects the function writeFile of the file internal/providers/acp/tool_bridge.go of the component ACP ToolBridge Workspace Handler. This manipulation causes path traversal. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

Weakness: CWE-22

Which versions are affected by CVE-2026-15626?

How do I fix CVE-2026-15626?

No fix has been published for CVE-2026-15626 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-2026-15626 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15626 exists.

Sources

Also known as GHSA-wf8r-mxfr-xh87.

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