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[GHSA-p773-8mf4-rjm5] @farmfe/core is Missing Origin Validation in WebSocket #6931

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[GHSA-p773-8mf4-rjm5] @farmfe/core is Missing Origin Validation in WebSocket #6931

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10 changes: 5 additions & 5 deletions advisories/github-reviewed/2026/02/GHSA-p773-8mf4-rjm5/GHSA-p773-8mf4-rjm5.json
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{
"schema_version": "1.4.0",
"id": "GHSA-p773-8mf4-rjm5",
"modified": "2026-02-12T22:14:12Z",
"modified": "2026-02-12T22:14:13Z",
"published": "2026-02-12T18:30:23Z",
"aliases": [
"CVE-2025-56647"
],
"summary": "@farmfe/core is Missing Origin Validation in WebSocket",
"details": "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.",
"details": "npm @farmfe/core versions prior to 1.7.6 are vulnerable to Cross-Site WebSocket Hijacking (CSWSH) due to missing origin validation in the WebSocket server.\n\nThe development server (used for hot module reloading) fails to validate the `Origin` header when accepting WebSocket connections. An attacker can trick a developer running the dev server into visiting a malicious webpage. This page can connect to the developer's local WebSocket server (e.g., `ws://localhost:9000`) and steal source code or sensitive data exposed by the HMR interface.",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
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"cwe_ids": [
"CWE-1385"
],
"severity": "MODERATE",
"severity": "HIGH",
"github_reviewed": true,
"github_reviewed_at": "2026-02-12T22:14:11Z",
"nvd_published_at": "2026-02-12T16:16:03Z"
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