nminer@3.0.0
OpenSSF/OSV Malicious Advisory
imported 3h ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-18648 confirms this npm version as malicious.
Advisory
MAL-2026-18648
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in nminer (npm)
Details
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
References
Independent LPM AI assessment
SuspiciousIndependent AI assessment: suspicious. LPM AI assessed this version as suspicious; the assessments disagree.
The package is intentionally a miner and does not mine on import, but constructing it without an address silently sends mining proceeds to the maintainer's donation address. This undisclosed default creates a meaningful risk for callers who omit the wallet parameter, so warn rather than block.
Static reason
No blocking static signals were detected.
Trigger
A caller constructs NMiner without providing an address; mining begins after the constructor connects and receives a job.
Impact
Users who omit the address may spend CPU resources mining shares credited to the maintainer.
Mechanism
The miner defaults to a hard-coded pool and XMR address, logs in with that address, then starts its native mining job.
AI rationale
The package is intentionally a miner and does not mine on import, but constructing it without an address silently sends mining proceeds to the maintainer's donation address. This undisclosed default creates a meaningful risk for callers who omit the wallet parameter, so warn rather than block.
Evidence
index.jsREADME.md
Network endpoints1
pool.supportxmr.com:3333
Independent scan evidence
public snapshotAI called this Suspicious at 94.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for AI warning decision
- NMiner defaults to pool.supportxmr.com:3333 and a hard-coded XMR address.
- Constructing NMiner triggers a connection automatically unless stealth mode delays it.
- The same hard-coded XMR address is listed in the README as the maintainer's donation address.
- The pool login uses the configured address, and mining starts after a job arrives.
Evidence against
- The package is explicitly described as a RandomX CPU miner, and its quick-start example supplies the user's wallet address.
- The manifest declares no install, preinstall, or postinstall scripts.
- The concern is triggered by creating a miner instance; importing the package alone does not start mining.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkWebSocket
HighEntropyStrings
Source & flagged code
6 flaggedsrc/js/fleet.jsView file
12const net_1 = __importDefault(require("net"));
L13: const child_process_1 = require("child_process");
L14: const logger_js_1 = require("./logger.js");
High
11const cluster_1 = __importDefault(require("cluster"));
L12: const net_1 = __importDefault(require("net"));
L13: const child_process_1 = require("child_process");
L14: const logger_js_1 = require("./logger.js");
...
L21: const RESPAWN_HEALTHY = 30000;
L22: const workerLevel = () => (0, logger_js_1.toLevel)(process.env[exports.WORKER_LOG], "silent");
L23: exports.workerLevel = workerLevel;
High
Same File Env Network Execution
A single source file combines environment access, network access, and code or shell execution; review context before blocking.
src/js/fleet.jsView on unpkg · L11index.jsView file
54class NMiner {
pool = "stratum+tcp://pool.supportxmr.com:3333";
address = "[redacted]";
pass
Findings
4 High5 Medium3 Low
HighChild Processsrc/js/fleet.js
HighSame File Env Network Executionsrc/js/fleet.js
HighAi Review Evidenceindex.js
HighAi Review Evidenceindex.js
MediumDynamic Requireindex.js
MediumNetwork
MediumEnvironment Vars
MediumShips Native Binarybin/nminer-win32-arm64.node
MediumStructural Risk Force Deep Review
LowScripts Present
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to nminer@3.0.0.
See all versions of nminer for other recorded verdicts.
- Avoid installing nminer@3.0.0. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.