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CVE-2026-45805
Penpot: MCP REPL server binds to 0.0.0.0 with unauthenticated /execute endpoint — RCE
High8.8EPSS 0.38%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.38% · top 68% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npm@penpot/mcpGHSA-22qr-rp27-j9wm (opens in a new tab)
References (4)
- https://github.com/penpot/penpot/security/advisories/GHSA-22qr-rp27-j9wm (opens in a new tab)x_refsource_CONFIRMexploit
- https://github.com/penpot/penpot/issues/9518 (opens in a new tab)x_refsource_MISC
- https://github.com/penpot/penpot/commit/798ee46b4a84ee6dfc756b001f33acbe0280d62f (opens in a new tab)x_refsource_MISC
- https://github.com/penpot/penpot/releases/tag/2.15.0 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-22qr-rp27-j9wm (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-45805)Record last updated .