registry / hippo-memory / 1.47.0

hippo-memory@1.47.0

Biologically-inspired memory for AI agents. Zero runtime deps, SQLite, MCP server, and an opt-in hosted TypeSafe Jev reranker. Decay, retrieval strengthening, consolidation.

AI Security Review

scanned 14d ago · by lpm-firewall-ai

Inspected source shows a repair-only postinstall and visible setup nudges; the agent integration changes occur in CLI setup paths. The flagged embedding and prediction modules implement ordinary provider requests and database-backed prediction storage, with no source-grounded attack identified.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

npm installation triggers the postinstall wrapper; agent integration setup runs through the CLI.

Impact

No install-triggered foreign agent configuration mutation or confirmed credential exfiltration was established.

Mechanism

The postinstall invokes repair logic for an existing Codex wrapper and prints notices. CLI setup checks project markers before installing agent hooks or plugins.

AI rationale

Evidence

package.jsonscripts/postinstall.cjsdist/postinstall.js

Decision evidence

public snapshot

AI called this Clean at 88.0% confidence as Benign with low false-positive risk.

Evidence for AI clean decision

The install hook delegates to a wrapper that imports the postinstall module; that module only repairs an existing Codex wrapper and prints setup nudges.
The detected agent integrations are processed by the CLI auto-setup function; the install hook does not call that function.
The OpenCode plugin installer is exposed as a function for setup, while the CLI detects project agent markers before running integration setup.
Embedding providers send requests to the configured provider URL; this is ordinary provider operation, not evidence of credential theft.
Prediction storage validates inputs and writes package data through the database API.
The capture target reads Claude project entries and returns without doing so when the directory is absent.
The referenced hooks declaration describes plugin install and uninstall operations.

Evidence against

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystem

Source & flagged code

7 flagged

package.jsonView file

Lines 18-58json

18 },

19 "files": [

20 "dist",

21 "!dist/src",

22 "!dist/**/*.map",

23 "dist-ui",

24 "bin",

25 "scripts/postinstall.cjs",

26 "openclaw.plugin.json",

27 "extensions/openclaw-plugin"

28 ],

29 "scripts": {

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

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

32 "dev": "tsc --watch",

33 "pretest": "npm run build",

34 "test": "vitest run",

35 "test:watch": "vitest",

36 "lint": "oxlint",

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

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

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L38

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L38

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

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

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

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

43 "version": "node scripts/sync-version.mjs && node scripts/check-manifest-versions.mjs",

44 "prepublishOnly": "node scripts/check-manifest-versions.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"

45 },

46 "keywords": [

47 "memory",

48 "ai",

49 "agents",

50 "llm",

51 "claude",

52 "context",

53 "recall",

54 "episodic",

55 "semantic",

56 "embeddings",

57 "hybrid-search",

58 "agent-memory",

dist/embeddings.jsView file

Lines 79-119javascript

79 * official inference code in `FlagEmbedding`); MiniLM and most sentence-

80 * transformers models use mean pooling. Unknown model ids default to mean

81 * — that is the safe choice because most third-party models adopt the

82 * sentence-transformers convention, and the

dist/rerankers/cross-encoder.jsView file

Lines 1-23javascript

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

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

3const MODEL_NAME = 'Xenova/ms-marco-MiniLM-L-6-v2';

4const _require

dist/hooks.jsView file

•Manifest-trigger-reachable source links an external AI-agent control path to a behavior-bearing write operation. } } } return out; } function [redacted](historypath, startoffsetbytes) { if (!fs.existssync(historypath)) return []; const raw = fs.readfilesync(historypath); if (startoffsetbytes >= raw.length) return []; const delta = raw.subarray(startoffsetbytes).tostring('utf8'); const seen = new set(); const ordered = []; for (const line of delta.split('\n')) { if (!line.trim()) continue; try { const parsed = json.parse(line); const sessionid = parsed.session_id; if (isjsonstring(sessionid) && sessionid && !seen.has(sessionid)) { seen.add(sessionid);

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/hooks.jsView on unpkg

dist/embedding-provider.js#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 5

High

Semantic Analysis Limited

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

dist/embedding-provider.js#virtual:normalized:round1View on unpkg

dist/predictions.jsView file

•matchType = normalized_sha256 matchedPackage = hippo-memory@1.24.0 matchedPath = dist/predictions.js matchedIdentity = npm:aGlwcG8tbWVtb3J5:1.24.0 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.

dist/predictions.jsView on unpkg

Source & flagged code

7 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/embeddings.jsView file

99// Promise<object> names that honestly without claiming a specific module shape. L100: const _dynImport = new Function('s', 'return import(s)'); L101: /**

Low

Eval

Package source references a known benign dynamic code generation pattern.

dist/embeddings.jsView on unpkg · L99

Findings

4 High5 Medium6 Low

HighInstall Time Lifecycle Scriptspackage.json

HighTrigger Reachable External Ai Agent Control Surface Mutationdist/hooks.js

HighSemantic Analysis Limiteddist/embedding-provider.js#virtual:normalized:round1

HighKnown Malware Source Similaritydist/predictions.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/rerankers/cross-encoder.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowEvaldist/embeddings.js

LowFilesystem

Low

Affected versions and remediation

This report applies to hippo-memory@1.47.0.

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

Review the evidence and your use of hippo-memory@1.47.0 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: 2026-10-09 05:43:21.650Z (UTC).

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