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devcodex@1.17.11: AI-agent control-surface risk | LPM Firewall

registry / devcodex / 1.17.11

devcodex@1.17.11

DevCodex — intent-driven AI coding workflow runtime for Codex, Claude Code, GitHub Copilot, Gemini CLI, Grok, and Cursor

AI Security Review

scanned 4h ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. A global npm postinstall automatically modifies user-level control surfaces for Copilot, Claude, Codex, Gemini, Grok, and Cursor. It installs instructions, hooks, plugins, and MCP configuration that execute package-controlled runtime content in later agent sessions.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review

Trigger

npm install -g devcodex

Impact

Future sessions in multiple AI coding tools can invoke package-controlled hooks and MCP runtimes without a separate setup command.

Mechanism

postinstall global multi-host AI-agent hook and MCP registration

Policy narrative

Installing globally invokes postinstall, which calls the global-host configuration writer. That writer targets six AI-agent products and registers package-controlled instructions, hooks, MCP configurations, and plugins under their user-level homes. Those registrations can execute on later prompt and tool events, creating an unconsented broad foreign-agent control surface.

Rationale

This is a concrete, unconsented postinstall mutation of broad foreign AI-agent control surfaces, meeting the firewall block boundary despite the lack of observed exfiltration.

Evidence

package.jsonscripts/postinstall.jsscripts/lib/npm-lifecycle-adapter.jsscripts/lib/global-host-target.jsscripts/lib/global-host-config.js~/.copilot~/.claude~/.codex~/.gemini~/.grok

Source & flagged code

12 flagged · loading source

package.jsonView file

•scripts registry_only=benchmark:execution-chain,benchmark:report-index-wide,benchmark:runtime-indexes,check:control-content,check:skill-intents,check:turn-liveness,check:workflow-root-registry,cleanup:package-projection changed=validate

Critical

Manifest Confusion

Tarball package.json differs from the npm registry version manifest for scripts or dependency sets.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.js

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

index.jsView file

8L9: const fs = require('fs') L10: const os = require('os')

Medium

Dynamic Require

Package source references dynamic require/import behavior.

index.jsView on unpkg · L8

scripts/lib/devcodex-readiness.jsView file

1Install-time code directly mutates a foreign AI-agent control surface: L62: const env = options.env || process.env L63: const sessionId = String(env.CODEX_THREAD_ID || '').trim() L64: if (!sessionId) return null ... L179: } L180: fsImpl.mkdirSync(directory, { recursive: true }) L181: const unsafeAfter = unsafePathComponent(sharedRoot, file, fsImpl) ... L198: } L199: fsImpl.writeFileSync(temporary, `${JSON.stringify(payload, null, 2)}\n`, { encoding: 'utf8', flag: 'wx', mode: 0o600 }) L200: fsImpl.renameSync(temporary, file) ... L334: facts.globalLifecycleFilesPresent.status === 'BLOCK' || L335: facts.codexAdapterContractReady.status === 'BLOCK' || L336: facts.managedConfigDrift.status === 'BLOCK') { Write operation from scripts/lib/devcodex-readiness.js: L62: const env = options.env || pro

Critical

Ai Agent Control Hijack

Source creates an unconsented AI-agent control surface through install-time mutation or a default unauthenticated remote skill channel.

scripts/lib/devcodex-readiness.jsView on unpkg · L1

scripts/lib/host-adapter-scope.jsView file

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. anned-install') : (after.repoid && sourcedigest === installeddigest ? 'verified' : 'mismatch') if (!dryrun && status !== 'verified') { const error = new error('grok_plugin_install_mismatch: installed plugin bytes differ from workspace owner') error.code = 'grok_plugin_install_mismatch' throw error } return { schemaversion: 'grokplugininstallationreceiptv1', status, pluginpath: portable(source), repoid: after.repoid, installedpath: installedpath ? portable(installedpath) : null, sourcedigest, installeddigest, grokversion: string(probe.stdout || probe.stderr || '').trim(), refreshmode, dryrun } } function timestampsu

High

Trigger Reachable External Ai Agent Control Surface Mutation

Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface.

scripts/lib/host-adapter-scope.jsView on unpkg

hooks/_runtime/stdio-bounds.cjsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 2

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

hooks/_runtime/stdio-bounds.cjsView on unpkg

scripts/lib/global-host-runtime-verifier.jsView file

•matchType = normalized_sha256 matchedPackage = devcodex@1.17.9 matchedPath = scripts/lib/global-host-runtime-verifier.js matchedIdentity = npm:ZGV2Y29kZXg:1.17.9 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/lib/global-host-runtime-verifier.jsView on unpkg

scripts/test-runtime-rolling-upgrade.jsView file

•matchType = normalized_sha256 matchedPackage = devcodex@1.17.9 matchedPath = scripts/test-runtime-rolling-upgrade.js matchedIdentity = npm:ZGV2Y29kZXg:1.17.9 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/test-runtime-rolling-upgrade.jsView on unpkg

grok/plugins/devcodex-workspace/hooks/devcodex-workspace.cjsView file

•matchType = normalized_sha256 matchedPackage = devcodex@1.17.9 matchedPath = grok/plugins/devcodex-workspace/hooks/devcodex-workspace.cjs matchedIdentity = npm:ZGV2Y29kZXg:1.17.9 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

grok/plugins/devcodex-workspace/hooks/devcodex-workspace.cjsView on unpkg

scripts/lib/node-runtime-readiness.jsView file

•matchType = normalized_sha256 matchedPackage = devcodex@1.17.9 matchedPath = scripts/lib/node-runtime-readiness.js matchedIdentity = npm:ZGV2Y29kZXg:1.17.9 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/lib/node-runtime-readiness.jsView on unpkg

scripts/test-security-audit.jsView file

•matchType = normalized_sha256 matchedPackage = devcodex@1.17.9 matchedPath = scripts/test-security-audit.js matchedIdentity = npm:ZGV2Y29kZXg:1.17.9 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

scripts/test-security-audit.jsView on unpkg