registry / Credential exfiltration / hippo-memory / 1.43.0

hippo-memory@1.43.0

Biologically-inspired memory system for AI agents. Decay by default, strength through use.

AI Security Review

scanned 14d ago · by lpm-firewall-ai

The package has a concrete conditional credential-forwarding risk: an API embedding key is sent to a configurable HTTPS destination without a provider-host allowlist. This warrants a warning, while the local default and explicit provider configuration do not establish malicious intent.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

A user configures an API embedding provider and invokes embedding work.

Impact

A misconfigured or hostile base URL can receive the provider credential and embedding input.

Mechanism

The provider reads its key from an environment variable and attaches it as a bearer token to a request whose URL uses the configured base URL.

AI rationale

Evidence

dist/embedding-provider.js

Decision evidence

public snapshot

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

Evidence for warning

API embedding mode reads its provider credential from the provider-specific environment variable.
API embedding requests send that credential as a bearer token to a URL built from the configured base URL.
The configured base URL accepts any HTTPS host, so the credential can be sent to an operator-selected recipient.
The API provider is activated through embedding configuration; local embedding is the default.
The postinstall entry only repairs a wrapper for users who previously opted in; it does not perform a first install.

Evidence against

The credential-forwarding behavior requires API provider configuration; the default provider is local.
The package postinstall path does not install the agent wrapper for new users.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

Source & flagged code

9 flagged

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

98// Promise<object> names that honestly without claiming a specific module shape. L99: const _dynImport = new Function('s', 'return import(s)'); L100: /**

Low

Eval

Package source references a known benign dynamic code generation pattern.

dist/embeddings.jsView on unpkg · L98

dist/rerankers/cross-encoder.jsView file

3const MODEL_NAME = 'Xenova/ms-marco-MiniLM-L-6-v2'; L4: const _require = createRequire(import.meta.url); L5: const TRANSFORMERS_PACKAGES = ['@huggingface/transformers', '@xenova/transformers'];

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/rerankers/cross-encoder.jsView on unpkg · L3

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 = 9

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

dist/src/predictions.jsView file

High

Known Malware Source Similarity

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

dist/src/predictions.jsView on unpkg

dist/cli.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = hippo-memory@1.40.0 matchedIdentity = npm:aGlwcG8tbWVtb3J5:1.40.0 similarity = 0.917 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

dist/cli.jsView on unpkg

Source & flagged code

9 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

98// Promise<object> names that honestly without claiming a specific module shape. L99: const _dynImport = new Function('s', 'return import(s)'); L100: /**

Low

Eval

Package source references a known benign dynamic code generation pattern.

dist/embeddings.jsView on unpkg · L98

Findings

6 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

HighKnown Malware Source Similaritydist/src/predictions.js

HighPrevious Version Dangerous Deltadist/cli.js

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/rerankers/cross-encoder.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

Affected versions and remediation

This report applies to hippo-memory@1.43.0.

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

Review the evidence and your use of hippo-memory@1.43.0 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 05:44:32.569Z (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