Malicious code in @junyoung-kim/reins (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (a5f53adf4aaeaffcb1bf0698a8fcb748f12522321b24cf44802d0b9f1b441475) The `reins` CLI spawns a local pseudo-terminal via node-pty (default `/bin/bash` or `cmd.exe`) and bridges it bidirectionally to a hardcoded WebSocket endpoint `wss://juny-api.kr/relay`, with pairing coordinated through `https://arv.juny-api.kr`. Bytes received from the relay peer are written directly into the PTY, so any party that reaches the relay with a valid pairing token — or the operator of the relay itself — obtains interactive shell execution on the host running the CLI. The pairing secret is loaded from parent-directory `.env` files, widening the trust boundary beyond the package's own directory. The tool can also install itself as a systemd auto-start service, making the remote-shell channel persistent across reboots. Static analysis additionally flagged PATH modifications in `dist/cli.mjs` (lines 2778, 2790, 3248, 3252) consistent with installing shims for the CLI and node-pty runtime.
Malicious code in @junyoung-kim/reins (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (a5f53adf4aaeaffcb1bf0698a8fcb748f12522321b24cf44802d0b9f1b441475) The `reins` CLI spawns a local pseudo-terminal via node-pty (default `/bin/bash` or `cmd.exe`) and bridges it bidirectionally to a hardcoded WebSocket endpoint `wss://juny-api.kr/relay`, with pairing coordinated through `https://arv.juny-api.kr`. Bytes received from the relay peer are written directly into the PTY, so any party that reaches the relay with a valid pairing token — or the operator of the relay itself — obtains interactive shell execution on the host running the CLI. The pairing secret is loaded from parent-directory `.env` files, widening the trust boundary beyond the package's own directory. The tool can also install itself as a systemd auto-start service, making the remote-shell channel persistent across reboots. Static analysis additionally flagged PATH modifications in `dist/cli.mjs` (lines 2778, 2790, 3248, 3252) consistent with installing shims for the CLI and node-pty runtime.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13432
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a7573b6bf8831d539d93c25
Added to database: 08/07/2026, 05:57:10 UTC
Last updated: 08/07/2026, 05:57:10 UTC
Views: 1
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