hippo-memory@1.64.0

Make your agent's memory work like a brain. Hippo is long-term memory for coding agents.

AI Security Review

scanned 15d ago · by lpm-firewall-ai

The install hook performs a guarded repair of an existing Codex wrapper, a concrete agent integration lifecycle risk. The metadata gate indicates prior opt-in, so the evidence supports a warning rather than a block.

Static reason

One or more suspicious static signals were detected.

Trigger

Installing the package with its postinstall active, when Codex wrapper metadata already exists and the package is installed under node_modules.

Impact

A user's Codex launcher may be changed during package installation after a prior wrapper opt-in.

Mechanism

Postinstall calls a repair routine that checks wrapper metadata and may run the wrapper installer; the installer backs up the real Codex executable and writes the wrapper.

AI rationale

Evidence

dist/postinstall.jsdist/hooks/codex-wrapper.jspackage.json

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json runs scripts/postinstall.cjs during installation.
The postinstall path invokes a Codex wrapper repair unless skipped.
Repair requires existing wrapper metadata, then can re-run wrapper installation for a package in node_modules.
Wrapper installation can move the Codex executable to a backup path.
The init agent configuration changes are tied to explicit initialization behavior.

Evidence against

The wrapper repair is gated by metadata indicating a prior opt-in; first-time installation is directed to an explicit CLI command.
The Claude and Codex postinstall messages are read-only nudges, and the init flow supports skipping automatic integrations.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStringsMinified

Source & flagged code

8 flagged

package.jsonView file

Lines 27-67json

27 "dist-ui",

28 "bin",

29 "scripts/postinstall.cjs",

30 "openclaw.plugin.json",

31 "extensions/openclaw-plugin"

32 ],

33 "scripts": {

34 "baseline": "npm run build && npm test",

35 "build": "node -e \"require('fs').rmSync('dist',{recursive:true,force:true})\" && tsc && tsc -p tsconfig.benchmarks.json && tsc -p tsconfig.extensions.json",

36 "typecheck:tests": "tsc -p tsconfig.tests.json",

37 "dev": "tsc --watch",

38 "pretest": "npm run build",

39 "test": "vitest run",

40 "test:watch": "vitest",

41 "test:coverage": "vitest run --coverage",

42 "test:delivery-ledger": "vitest run tests/delivery-ledger",

43 "test:eval": "vitest run --config vitest.eval.config.ts",

44 "lint": "oxlint",

45 "sbom": "node scripts/sbom.mjs",

46 "audit:security": "npm audit --audit-level=high && npm --prefix ui audit --audit-level=high",

47 "postinstall": "node scripts/postinstall.cjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L47

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L47

48 "smoke:pack": "node scripts/smoke-pack.mjs",

49 "smoke:openclaw-install": "node scripts/smoke-openclaw-install.mjs",

50 "build:ui": "cd ui && npm install && npm run build",

51 "build:all": "npm run build && npm run build:ui",

52 "version": "node scripts/sync-version.mjs && node scripts/check-manifest-versions.mjs && node scripts/check-expiring-keys-floor.mjs",

53 "prepublishOnly": "node scripts/check-manifest-versions.mjs && node scripts/check-expiring-keys-floor.mjs && node scripts/changelog-fragments.mjs check && node scripts/check-em-dashes-in-release-notes.mjs && node scripts/check-graph-writes.mjs && npm run build:all && node scripts/check-openclaw-dist.mjs && npm run smoke:openclaw-install && node scripts/check-tests-pass.mjs"

54 },

55 "keywords": [

56 "memory",

57 "agent-memory",

58 "ai-memory",

59 "llm-memory",

60 "long-term-memory",

61 "persistent-memory",

62 "memory-layer",

63 "mcp",

64 "mcp-server",

65 "model-context-protocol",

66 "claude-code",

67 "claude",

dist/local-embedding.jsView file

Lines 10-50javascript

10// A pipeline is expensive to load, so one instance per model is kept for the process.

11const _pipelineInstances = new Map();

12const _pipelineLoading = new Map();

13export const

dist/rerankers/cross-encoder.jsView file

Lines 1-24javascript

1import { createRequire } from 'node:module';

2import { pathToFileURL } from 'node:url';

3import { log } from '../log.js';

4const MODEL_NAME =

dist/scheduler.jsView file

Lines 20-60javascript

20 };

21}

22export function workspaceRegistryPath(globalRoot) {

23 return path.join(globalRoot, 'workspaces.json');

24}

25function normalizeWorkspace

dist/cli/setup.jsView file

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. printerror(`unknown hook target: ${target ?? '(none)'}`); process.exit(1); } unpatchagentfile(hooks[target], target); if (target === 'claude-code') { if (uninstalljsonhooks(target)) { console.log(`removed hippo hooks from ${target} settings`); } else { warnclaudesettingsunusable(checkuninstallable(target), '', 'uninstall'); } } else if (target === 'opencode') {

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.

dist/cli/setup.jsView on unpkg

dist/cli/shared.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 6

High

Semantic Analysis Limited

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

dist/cli/shared.js#virtual:normalized:round1View on unpkg

Source & flagged code

8 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.cjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.cjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/local-embedding.jsView file

30// Promise<object> names that honestly without claiming a specific module shape. L31: const _dynImport = new Function('s', 'return import(s)'); L32: /** Check (synchronously) if @xenova/transformers or @huggingface/transformers is installed. */

Low

Eval

Package source references a known benign dynamic code generation pattern.

dist/local-embedding.jsView on unpkg · L30

Findings

4 High6 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighTrigger Reachable External Ai Agent Control Surface Mutationdist/cli/setup.js

HighTrigger Reachable Persistencedist/scheduler.js

HighSemantic Analysis Limiteddist/cli/shared.js#virtual:normalized:round1

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/rerankers/cross-encoder.js

MediumNetwork

MediumEnvironment Vars

MediumInstall Persistencedist/scheduler.js

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowEvaldist/local-embedding.js

Affected versions and remediation

This report applies to hippo-memory@1.64.0.

See all versions of hippo-memory for other recorded verdicts.

Review the evidence and your use of hippo-memory@1.64.0 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.

Evidence last updated: 2026-10-07 20:27:59.942Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Runtime surface

Behavioral surface

Source & flagged code