CVE-2026-41208 Paperclip: Privilege Escalation via Agent-Controlled workspaceStrategy.provisionCommand Leading to OS Command Execution
An attacker with an agent API key can inject shell commands into server configuration, leading to arbitrary code execution and privilege escalation on the host.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41208?
CVE-2026-41208 is a high-severity command injection vulnerability in @paperclipai/server, published on 23 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Paperclip is a Node.js server and React UI that orchestrates a team of AI agents to run a business. Versions of @paperclipai/server prior to 2026.416.0 contain a privilege escalation vulnerability that allows an attacker with an Agent API key to execute arbitrary OS commands on the Paperclip server host. An attacker with an agent credential can escalate privileges from the agent runtime to the Paperclip server host. The vulnerability occurs because agents are allowed to update their own adapterConfig via the /agents/:id API endpoint. The configuration field adapterConfig.workspaceStrategy.provisionCommand is later executed by the server runtime. As a result, an attacker controlling an agent credential can inject arbitrary shell commands which are executed by the Paperclip server during workspace provisioning. This breaks the intended trust boundary between agent runtime configuration and server host execution, allowing a compromised or malicious agent to escalate privileges and run commands on the host system. This vulnerability allows remote code execution on the server host. @paperclipai/server version 2026.416.0 fixes the issue.
Weakness: CWE-78
Which versions are affected by CVE-2026-41208?
2 open source packages ship an affected version, including @paperclipai/server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@paperclipai/server npm | All versions | 2026.416.0 |
@paperclipai/server npm | All versions | 2026.416.0 |
Products include Paperclip Paperclipai.
How do I fix CVE-2026-41208?
Upgrade @paperclipai/server to 2026.416.0 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-41208 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41208 exists.
Other vulnerabilities in @paperclipai/server
Sources
Also known as GHSA-265w-rf2w-cjh4.