Malicious code in fabric-render-bridge (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c2715ef0b07fbf0ca24fb8dadec44f2fcfdc273421a49ad2201bf8e40d3e2c01) package.json declares postinstall="node index.js", so `npm install fabric-render-bridge` automatically executes index.js. index.js reads Minecraft launcher credential stores across multiple launchers (launcher_accounts.json and launcher_profiles.json for the official launcher, PrismLauncher, MultiMC, TLauncher, Modrinth, PolyMC, GDLauncher) plus a session dump from the OS temp directory, extracts accessToken/refreshToken values and account usernames, and POSTs them via https.request to a hardcoded Discord webhook at discord.com/api/webhooks/1554065488726990909/. A separate sendInfo() routine POSTs os.hostname(), os.userInfo().username, os.platform() and os.release() to the same webhook on every install. The package presents itself as a Fabric render bridge but ships no rendering functionality; its sole install-time behavior is credential and host-identity theft.
MAL-2026-17225
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:MAL-2026-17225
fabric-render-bridge
Source reference: /affected/0/package/name
- Affected versions
- 1.0.0
Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"package": {
"name": "fabric-render-bridge",
"purl": "pkg:npm/fabric-render-bridge",
"ecosystem": "npm"
},
"versions": [
"1.0.0"
],
"database_specific": {
"cwes": [
{
"name": "Embedded Malicious Code",
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature."
}
],
"source": "https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/fabric-render-bridge/MAL-2026-17225.json",
"indicators": {
"evidence_files": [
{
"path": "index.js",
"tlsh": "c3e1637985f214227667e66d3f0b550a226172433248cd7cba9cf3901fee42d92b36bd",
"sha256": "11609527f87f8196eba27120de18a9a74cf1ba626d8611bb3d970bf62e785ae4"
}
],
"package_integrity": [
{
"hashes": {
"sha1": "c129bd9334e52c70128b4af1f9a4e7b8d73f1a6e",
"sha512_sri": "sha512-cMCxWjXKagQO8UspeEB/isQfba/hIGuw8EqUzz0V6RfaAVVlVstNdruyFufJw9Qvjm8u4tVoJHLTJFwsgDt1PA=="
},
"filename": "fabric-render-bridge-1.0.0.tgz"
}
]
}
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #23568 · Revision 1
- Added to Heist Feed
- Publisher date