Penpot up to 2.14.x ReplServer ReplServer.ts executePluginTask code os command injection

Summaryinfo

A vulnerability described as critical has been identified in Penpot up to 2.14.x. This impacts the function executePluginTask of the file mcp/packages/server/src/ReplServer.ts of the component ReplServer. Executing a manipulation of the argument code can lead to os command injection. This vulnerability is registered as CVE-2026-45805. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in Penpot up to 2.14.x and classified as critical. This vulnerability affects the function executePluginTask of the file mcp/packages/server/src/ReplServer.ts of the component ReplServer. The manipulation of the argument code with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Penpot is an open-source design tool for design and code collaboration. Prior to 2.15.0, Penpot MCP's mcp/packages/server/src/ReplServer.ts bound the ReplServer to 0.0.0.0:4403 and exposed an unauthenticated /execute endpoint that passed the code field to PluginBridge.executePluginTask(), allowing anyone on the network to execute JavaScript on the server. This issue is fixed in version 2.15.0.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-45805 since 05/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading to version 2.15.0 eliminates this vulnerability.

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Productinfo

Name

• Penpot

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14

Website

• Product: https://github.com/penpot/penpot/

CPE 2.3info

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CPE 2.2info

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