@gusmano/reext

MAL-2026-3684

Malicious code in @gusmano/reext (npm)

Details


---
_-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (498a21b60dcdfe236ea0b1683e1ec64aa091643b6ad562c3845757eed79660d8)
The npm preinstall lifecycle script (dist/scripts/preinstall.js, wired via package.json "preinstall": "node./dist/scripts/preinstall.js") reads the installer's ~/.gitconfig via iniparser.parseSync(home_dir+'/.gitconfig') and the OS username via os.userInfo().username, then issues an HTTPS GET to the hardcoded endpoint https://2tak.l.serverhost.name:1962/mobile/reext with osname, gitname, and gitemail supplied as query parameters. The code explicitly branches on `if (osname === 'xmarcgusmano') { server = 'http://localhost:1962' } else { server = 'https://2tak.l.serverhost.name:1962' }`, confirming that the remote-host path fires for every installer that is not the author's own machine — a deliberate exfiltration path gated by the author's own username. The destination is not a documented vendor endpoint; it is an author-controlled third-party host the installer did not opt into. Separately, dist/scripts/postinstall.js resolves `path.resolve(__dirname, '../../package.json')` (the consuming project's own package.json relative to node_modules/@gusmano/reext/dist/scripts/) and rewrites it, deleting scripts.dev/build/test/watch/coverage, the entire `scripts` key, `eslintConfig`, `devDependencies`, and `dependencies`, then rm -rf's several dist subfolders — destructive, unauthorized mutation of the installer's project files. The combination (silent install-time exfiltration of personal identity data to an author-controlled host plus destructive rewrite of the consumer's manifest) is unambiguously harmful to installers.

Compromised versions (34)

0.0.104
0.0.166
0.0.216
0.0.150
0.0.148
0.0.218
0.0.197
0.0.276
0.0.92
0.0.98
0.0.317
0.0.169
0.0.209
0.0.250
0.0.236
0.0.121
0.0.198
0.0.128
0.0.190
0.0.352
0.0.223
0.0.261
0.0.315
0.0.235
0.0.251
0.0.473
0.0.358
0.0.188
0.0.390
0.0.237
0.0.255
0.0.222
0.0.324
0.0.346

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.