High severity · published Jul 15, 2026
CVE-2026-45805
Penpot: MCP REPL server binds to 0.0.0.0 with unauthenticated /execute endpoint — RCE
8.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PE
penpot · penpot
< 2.15.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45805
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45805
github.com
https://github.com/penpot/penpot/commit/798ee46b4a84ee6dfc756b001f33acbe0280d62f
github.com
https://github.com/penpot/penpot/issues/9518
github.com
https://github.com/penpot/penpot/releases/tag/2.15.0
github.com
https://github.com/penpot/penpot/security/advisories/GHSA-22qr-rp27-j9wm
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