--- canonical: "https://firewall.lpm.dev/npm/fca-nx/v/6.7.2" markdown: "https://firewall.lpm.dev/npm/fca-nx/v/6.7.2.md" package: "fca-nx" report_status: "published" title: "fca-nx@6.7.2 npm security report" verdict: "suspicious" version: "6.7.2" --- # fca-nx@6.7.2 npm security report > **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document. ## Verdict summary **Flagged — allowed with a warning** — Allowed by default policy, but 14 finding(s) warrant review before installing. - **Verdict:** Suspicious - **Product-default install policy:** Warn - **Firewall policy:** Matched warn-list - **Public report status:** Published - **Threat category:** Credential Exfiltration - **Selected version:** 6.7.2 - **Selected version is latest:** No - **Analysis source:** AI Security Review (lpm-firewall-ai) This is the current Firewall decision for the selected package version, based on the available public evidence. Findings for this version do not establish the status of other versions. AI assessment: suspicious; recommendation: downgrade to warn. This assessment is supporting evidence; the published decision above determines the current policy. The explicit gate prevents treating this as covert automatic exfiltration, but it does not restrict credentials to Facebook-controlled destinations. The unrestricted credential-forwarding capability warrants a warning. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Suspicious - **Recorded analysis confidence:** 93.0% - **Started:** 2026-09-22T14:13:33.822Z - **Finished:** 2026-09-22T14:14:56.612Z - **Download time:** 510 ms - **Static scan time:** 1915 ms - **AI review time:** 80364 ms - **Total time:** 82790 ms The recorded confidence comes from the underlying analysis. Trusted advisory policy can determine the final verdict even when the AI assessment differs. ## Security analysis ### Published attack-surface review - **Summary:** A conditional E2EE gateway path can forward active Messenger session cookies to operator-configured WebSocket URLs. No fixed malicious recipient is embedded. - **Trigger:** An E2EE connection runs with FB\_DGW\_ENABLE set to 1 and at least one FB\_DGW\_URL endpoint configured. - **Impact:** A configured endpoint could receive usable Messenger session credentials. - **Evidence paths:** src/api/socket/e2ee/vendor/fb-e2ee.cjs - **Review source:** ai\_review - **Reviewed:** 2026-09-22T14:14:56.612Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** The code serializes cookies from the active app state and passes them as the Cookie header when opening WebSockets to the configured URLs. - **Rationale:** The explicit gate prevents treating this as covert automatic exfiltration, but it does not restrict credentials to Facebook-controlled destinations. The unrestricted credential-forwarding capability warrants a warning. - **Files touched:** src/api/socket/e2ee/vendor/fb-e2ee.cjs ### Review decision - **Verdict:** Suspicious - **Confidence:** 93.0% - **Recommended action:** downgrade\_to\_warn - **Intent class:** Dangerous Capability - **False-positive risk:** Medium - **Evidence for warning:** The package declares a CommonJS entrypoint and only test and lint scripts, with no install lifecycle hook., An E2EE path is gated by an explicit environment flag but accepts three operator-supplied WebSocket endpoint URLs and builds a cookie header from the active app state., The WebSocket connection sends that constructed cookie header as the Cookie request header to each supplied URL., Thread information requests use the Facebook GraphQL endpoint with the session jar., User information requests use Facebook GraphQL with the session jar. - **Evidence against:** The credential-forwarding path requires FB\_DGW\_ENABLE=1 and at least one endpoint environment variable., No fixed non-Facebook recipient or automatic install-time execution was found. ## Affected versions and remediation This report applies to fca-nx@6.7.2. - Review the evidence and your use of fca-nx@6.7.2 before allowing it. Restrict the permissions described in this report. - Choose an independently verified alternative or release. This report does not establish that other versions are safe. ## Public findings ### 1. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 2. High: High Secret - **Category:** Secrets - **Confidence:** 85.0% - **Path:** src/api/socket/e2ee/vendor/fb-e2ee.cjs - **Public source:** [View source]() Package contains a high-severity secret pattern. Public source snippet (untrusted): ```javascript patternName = google_api_key severity = high line = 2964 ``` ### 3. Medium: Dynamic Require - **Category:** Source - **Confidence:** 75.0% - **Path:** module/loginHelper.js - **Public source:** [View source]() Package source references dynamic require/import behavior. Public source snippet (untrusted): ```javascript L1: "use strict"; L2: const fs = require("fs"); L3: const path = require("path"); ``` ### 4. Low: Weak Crypto - **Category:** Source - **Confidence:** 64.0% - **Path:** src/api/socket/e2ee/vendor/fb-e2ee.cjs - **Public source:** [View source]() Package source references weak cryptographic algorithms. Public source snippet (untrusted): ```javascript L130: copyProps(Buffer3, SafeBuffer); L131: SafeBuffer.from = function(arg, encodingOrOffset, length) { L132: if (typeof arg === "number") { ... L400: * @return {Object} Accepted configuration L401: * @private L402: */ ... L543: this._inflate[kWriteInProgress] = true; L544: this._inflate.write(data); L545: if (fin) this._inflate.write(TRAILER); ... L660: * @param {(String|Buffer|ArrayBuffer|Buffer[])} data The received data L661: * @param {WebSocket} target A reference to the target to which the event was dispatched L662: */ ``` ### 5. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 6. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 7. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 8. Critical: Hardcoded Runtime Data Exfiltration - **Category:** Source - **Confidence:** 94.0% - **Path:** src/api/socket/e2ee/vendor/fb-e2ee.cjs - **Public source:** [View source]() Source sends credentials or rich application records to a package-controlled external receiver enabled by default. Public source snippet (untrusted): ```javascript L130: copyProps(Buffer3, SafeBuffer); L131: SafeBuffer.from = function(arg, encodingOrOffset, length) { L132: if (typeof arg === "number") { ... L400: * @return {Object} Accepted configuration L401: * @private L402: */ ... L543: this._inflate[kWriteInProgress] = true; L544: this._inflate.write(data); L545: if (fin) this._inflate.write(TRAILER); ... L660: * @param {(String|Buffer|ArrayBuffer|Buffer[])} data The received data L661: * @param {WebSocket} target A reference to the target to which the event was dispatched L662: */ ``` ### 9. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 10. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 11. Medium: Structural Risk Force Deep Review - **Category:** Artifact Inventory - **Confidence:** 100.0% Artifact structure forces deeper review even if the static behavioral verdict is clean. ### 12. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** src/api/threads/getThreadInfo.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = fcanew-r3nz75@10.1.15 matchedPath = src/api/threads/getThreadInfo.js matchedIdentity = npm:ZmNhbmV3LXIzbno3NQ:10.1.15 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 13. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** src/api/users/getUserInfo.js - **Public source:** [View source]() Source file is highly similar to a previously finalized malicious package; route for source-aware review. Public source snippet (untrusted): ```javascript matchType = normalized_sha256 matchedPackage = @eryxenx/fca@1.0.5 matchedPath = src/api/users/getUserInfo.js matchedIdentity = npm:QGVyeXhlbngvZmNh:1.0.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source ``` ### 14. High: Secret Pattern - **Category:** Secrets - **Confidence:** 75.0% - **Path:** src/api/socket/e2ee/vendor/fb-e2ee.cjs - **Public source:** [View source]() Google API key in src/api/socket/e2ee/vendor/fb-e2ee.cjs Public source snippet (untrusted): ```javascript patternName = google_api_key severity = high line = 2964 ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** No - **Dependencies:** 20 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 2 - **Published dependency-graph edges:** 20 ### Published dependency entries - @noble/curves ^2.2.0 (Dependency) - @noble/hashes ^2.2.0 (Dependency) - @signalapp/libsignal-client 0.70.0 (Dependency) - axios ^1.13.5 (Dependency) - axios-cookiejar-support ^5.0.5 (Dependency) - bluebird ^3.7.2 (Dependency) - chalk ^4.1.2 (Dependency) - cheerio 1.0.0-rc.12 (Dependency) - duplexify ^4.1.3 (Dependency) - form-data ^4.0.4 (Dependency) - gradient-string ^2.0.2 (Dependency) - https-proxy-agent ^4.0.0 (Dependency) - mime ^3.0.0 (Dependency) - mqtt ^5.10.1 (Dependency) - protobufjs ^8.4.0 (Dependency) - sequelize ^6.37.8 (Dependency) - sqlite3 ^6.0.1 (Dependency) - totp-generator ^1.0.0 (Dependency) - tough-cookie ^4.1.4 (Dependency) - ws ^8.18.0 (Dependency) ## Package metadata - **Package:** fca-nx - **Ecosystem:** npm - **Version:** 6.7.2 - **License:** MIT - **Version published:** 2026-09-22T06:27:33.241Z - **Package first seen:** 2026-08-12T20:12:08.779Z - **Package last seen:** 2026-09-27T21:05:02.833Z - **Known versions:** 19 - **Latest version:** 6.7.3 - **Appeal under review:** No - **Description:** Facebook Messenger API for Node.js — Fast, Secure, and Feature-Rich - **Author:** XALMAN - **Maintainers:** xalmandevv - **Keywords:** facebook, chat, api, messenger, bot, unofficial, fca, fca-nx, xalman, messenger-bot, chatbot, facebook-api - **Runtime engines:** node: \>=18.0.0 - **Artifact files:** 156 - **Artifact unpacked size:** 1,056,593 bytes - **Artifact signatures:** 2 - **Attestations:** No ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]()