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.
CVE-2026-45805
HIGHPre-NVD 8.88.8—Trending — 3 sources updated this weekElevated
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- 56(Track*)EG Risk 56/100SSVC: Track*
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity88% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Watch closely — could escalate to Attend. - EPSS
- 13.7%
- KEV
- Not listed
Published
May 19, 2026
Last Modified
July 15, 2026
Advisory Details (4)
Auto-updated Jul 15, 2026🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available
MCP REPL server binds to 0.0.0.0 with unauthenticated /execute endpoint — RCE · Advisory · penpot/penpot · GitHub
https://github.com/penpot/penpot/security/advisories/GHSA-22qr-rp27-j9wmgithub_release Patch Available
2.15.0
Patch available: penpot/penpot 2.15.0
https://github.com/penpot/penpot/releases/tag/2.15.0generic
MCP ReplServer binds to all interfaces (0.0.0.0) enabling unauthenticated remote code execution · Issue #9518 · penpot/penpot · GitHub
https://github.com/penpot/penpot/issues/9518github_commit Patch Available
commit 798ee46b4a84 (penpot/penpot)
Patch available: penpot/penpot 2.15.0 (contains commit 798ee46b4a84)
https://github.com/penpot/penpot/commit/798ee46b4a84ee6dfc756b001f33acbe0280d62fVendor Advisories for CVE-2026-45805(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| @penpot/mcp | — | 2.15.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 9× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 03:16 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-17 23:29 UTCOSV refresh
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-13 23:00 UTCEPSS rescore
- 2026-06-12 23:12 UTCEPSS rescore
- 2026-05-24 06:13 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-749
Frequently asked(5)
What is CVE-2026-45805?
CVE-2026-45805 is a high vulnerability published on May 19, 2026. 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…
When was CVE-2026-45805 disclosed?
CVE-2026-45805 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45805 actively exploited?
CVE-2026-45805 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45805?
CVE-2026-45805 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-45805?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45805, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-45805
Is Your Infrastructure Affected by CVE-2026-45805?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.