npm @farmfe/core before 1.7.6 is Missing Origin Validation in WebSocket.
Priority MEDIUM 62CWE-1385Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
npm @farmfe/core before 1.7.6 is Missing Origin Validation in WebSocket. The development (hot module reloading) server does not validate origin when connecting to a WebSocket client. This allows attackers to surveil developers running Farm who visit their webpage and steal source code that is leaked by the WebSocket server.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00219 12th percentileScored 2026-11-07
Fix Fixed @farmfe/core (npm): 1.7.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | @farmfe/core (npm) | before 1.7.6 | 1.7.6 | Patch available | GHSA-p773-8mf4-rjm5 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- @farmfe/core (npm) Vendor— Affected before 1.7.6 Fixed in 1.7.6 Patch available GHSA-p773-8mf4-rjm5
Remediation
- Fix · GHSA-p773-8mf4-rjm5 @farmfe/core (npm) Fixed in 1.7.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-56647
- 2026-10-03 Alias added: GHSA-p773-8mf4-rjm5
References
Sources
- CVE-2025-56647 · CVE Program
- CVE-2025-56647 · NVD
- FIRST EPSS
- GHSA-p773-8mf4-rjm5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences