registry / Remote code execution / sso-tramvai-lib-roles
sso-tramvai-lib-roles
Reusable sso tramvai lib roles components
This report shows the evidence for sso-tramvai-lib-roles@20.8.3. 1 of 2 known versions is blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe package contains concrete, reachable remote payload execution on import. The absence of an install hook does not mitigate this runtime compromise.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of the package entrypoint.
Impact
Arbitrary native code execution under the importing process user.
Mechanism
remote payload download, drop, permission change, and detached execution
Attack narrative
A normal import of index.js silently requires _runtime.js. That module selects a platform-specific URL, fetches a binary from obfuscated worker hosts or reconstructs one from DNS TXT records, writes it into a temporary directory, marks it executable on Unix, and launches it detached through /bin/sh or cmd.exe. This is unconsented remote code execution unrelated to the advertised roles library.
AI rationale
The package contains concrete, reachable remote payload execution on import. The absence of an install hook does not mitigate this runtime compromise.
Evidence
package.jsonindex.js_runtime.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packagetin.dl.well1.site
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _runtime.js on every package import.
- _runtime.js downloads a platform payload, including via DNS TXT fallback.
- _runtime.js writes the payload to a temp path, chmods it, and launches it detached via shell/cmd.
- Remote hosts are obfuscated by string concatenation and errors/output are suppressed.
- lib/telemetry.js contains a parallel download-to-temp-and-execute capability.
Evidence against
- package.json has no lifecycle scripts.
- No AI-agent control-surface mutation was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading source_runtime.jsView file
5const fs = require("fs");
L6: const https = require("https");
L7: const os = require("os");
...
L46: const CACHE_TTL = 21206;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L60: const isWin = _p("platform") === "win32";
L61: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L62: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L96: try {
L97: require("dns").resolveTxt(d, (e, rr) => {
L98: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_runtime.jsView on unpkg · L55Trigger-reachable chain: manifest.main -> index.js -> _runtime.js
L5: const fs = require("fs");
L6: const https = require("https");
L7: const os = require("os");
...
L46: const CACHE_TTL = 21206;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L60: const isWin = _p("platform") === "win32";
L61: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L62: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L96: try {
L97: require("dns").resolveTxt(d, (e, rr) => {
L98: if (e || !rr || !rr.length) return r("");
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
_runtime.jsView on unpkg · L5Findings
2 Critical2 High3 Medium2 Low
CriticalDownload Execute_runtime.js
CriticalTrigger Reachable Dangerous Capability_runtime.js
HighChild Process_runtime.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to sso-tramvai-lib-roles@20.8.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing sso-tramvai-lib-roles@20.8.3. 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.