--- canonical: "https://firewall.lpm.dev/npm/hippo-memory/v/1.52.2" markdown: "https://firewall.lpm.dev/npm/hippo-memory/v/1.52.2.md" package: "hippo-memory" report_status: "published" title: "hippo-memory@1.52.2 npm security report" verdict: "suspicious" version: "1.52.2" --- # hippo-memory@1.52.2 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 as AI-agent capability risk** — Allowed by default with warning: agent-facing configuration or capability changes need review before use. - **Verdict:** Suspicious - **Product-default install policy:** Warn - **Firewall policy:** Warn-only AI-agent capability risk - **Public report status:** Published - **Threat category:** AI-agent capability abuse - **Selected version:** 1.52.2 - **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 install lifecycle is limited to repair of an existing opted-in Codex wrapper and visible setup prompts. Explicit \`hippo init\` can mutate agent configuration, which warrants a warning under the user-command setup policy, but the inspected source does not establish malicious behavior. ## Latest scan - **Scanner version:** rust-scanner-worker-schema-1 - **Recorded final verdict:** Suspicious - **Recorded analysis confidence:** 89.0% - **Started:** 2026-10-09T05:42:52.931Z - **Finished:** 2026-10-09T05:43:34.576Z - **Download time:** 507 ms - **Static scan time:** 3659 ms - **AI review time:** 37477 ms - **Total time:** 41645 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:** An explicit \`hippo init\` command can install agent hooks or a package-owned OpenCode plugin when it detects existing agent configuration. This is a guarded setup capability; no install-time hijack or confirmed attack was identified. - **Trigger:** A user runs \`hippo init\` in a project with recognized agent configuration. - **Impact:** Agent sessions may invoke Hippo integration code after setup. The inspected sources do not establish credential theft, exfiltration, or another concrete attack. - **Review source:** ai\_review - **Reviewed:** 2026-10-09T05:43:34.576Z ### AI review details - **Review stage:** source\_first\_review - **Mechanism:** The CLI detects configured agents and writes hook configuration or the Hippo OpenCode plugin; the package postinstall path only repairs a previously opted-in Codex wrapper and prints setup guidance. - **Rationale:** The install lifecycle is limited to repair of an existing opted-in Codex wrapper and visible setup prompts. Explicit \`hippo init\` can mutate agent configuration, which warrants a warning under the user-command setup policy, but the inspected source does not establish malicious behavior. - **Files touched:** dist/cli.js, dist/hooks.js, dist/postinstall.js ### Review decision - **Verdict:** Suspicious - **Confidence:** 89.0% - **Recommended action:** downgrade\_to\_warn - **Intent class:** Dangerous Capability - **False-positive risk:** Medium - **Evidence for warning:** The install hook runs a postinstall script, whose package entry delegates to dist/postinstall.js., The postinstall path repairs a Codex wrapper only for users who previously opted in; otherwise it prints setup instructions., Running \`hippo init\` can detect existing agent configuration and install Hippo hooks or a plugin into it., The OpenCode plugin installer writes the package’s plugin source under the resolved plugin path. - **Evidence against:** The inspected install path does not perform first-time agent integration; its Claude and Codex messages direct users to explicit setup commands., The flagged capture code reads Claude project transcript paths; the cited section does not show credential collection or network transmission. ## Affected versions and remediation This report applies to hippo-memory@1.52.2. - Review the evidence and your use of hippo-memory@1.52.2 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. High: Install Time Lifecycle Scripts - **Category:** Manifest - **Confidence:** 90.0% - **Path:** package.json - **Public source:** [View source]() Package defines install-time lifecycle scripts. Public source snippet (untrusted): ```json scripts.postinstall = node scripts/postinstall.cjs ``` ### 2. Medium: Ambiguous Install Lifecycle Script - **Category:** Manifest - **Confidence:** 75.0% - **Path:** package.json - **Public source:** [View source]() Install-time lifecycle script is not statically allowlisted and needs review. Public source snippet (untrusted): ```json scripts.postinstall = node scripts/postinstall.cjs ``` ### 3. Low: Non Install Lifecycle Scripts - **Category:** Manifest - **Confidence:** 80.0% Package declares lifecycle scripts that are not normally run for registry tarball installs. ### 4. Low: Scripts Present - **Category:** Manifest - **Confidence:** 100.0% Package declares npm scripts. ### 5. Low: Eval - **Category:** Source - **Confidence:** 45.0% - **Path:** dist/embeddings.js - **Public source:** [View source]() Package source references a known benign dynamic code generation pattern. Public source snippet (untrusted): ```javascript L99: // Promise names that honestly without claiming a specific module shape. L100: const _dynImport = new Function('s', 'return import(s)'); L101: /** ``` ### 6. Medium: Dynamic Require - **Category:** Source - **Confidence:** 75.0% - **Path:** dist/rerankers/cross-encoder.js - **Public source:** [View source]() Package source references dynamic require/import behavior. Public source snippet (untrusted): ```javascript L3: const MODEL_NAME = 'Xenova/ms-marco-MiniLM-L-6-v2'; L4: const _require = createRequire(import.meta.url); L5: const TRANSFORMERS_PACKAGES = ['@huggingface/transformers', '@xenova/transformers']; ``` ### 7. Medium: Network - **Category:** Source - **Confidence:** 75.0% Package source references network APIs. ### 8. Medium: Environment Vars - **Category:** Source - **Confidence:** 75.0% Package source references environment variables. ### 9. Low: Filesystem - **Category:** Source - **Confidence:** 70.0% Package source references filesystem APIs. ### 10. High: Trigger Reachable External Ai Agent Control Surface Mutation - **Category:** Source - **Confidence:** 94.0% - **Path:** dist/hooks.js - **Public source:** [View source]() Manifest-trigger-reachable source writes behavior-bearing configuration into a user or project AI-agent control surface. Public source snippet (untrusted): ```javascript 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); ``` ### 11. Low: High Entropy Strings - **Category:** Supply Chain - **Confidence:** 55.0% Package source contains high-entropy string patterns. ### 12. Low: Url Strings - **Category:** Supply Chain - **Confidence:** 65.0% Package source contains URL literals. ### 13. 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. ### 14. High: Semantic Analysis Limited - **Category:** Scanner Coverage - **Confidence:** 100.0% - **Path:** dist/embedding-provider.js\#virtual:normalized:round1 - **Public source:** [View source]() A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review. Public source snippet (untrusted): ```text stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 5 ``` ### 15. High: Known Malware Source Similarity - **Category:** Static - **Confidence:** 97.0% - **Path:** dist/predictions.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 = 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 ``` ## Dependencies and install lifecycle - **Lifecycle scripts present:** Yes - **Published lifecycle scripts:** postinstall, prepublishOnly - **Dependencies:** 0 - **Optional dependencies:** 0 - **Peer dependencies:** 0 - **Development dependencies:** 5 - **Published dependency-graph edges:** 0 ## Package metadata - **Package:** hippo-memory - **Ecosystem:** npm - **Version:** 1.52.2 - **License:** MIT - **Version published:** 2026-09-27T01:47:22.242Z - **Package first seen:** 2026-07-02T20:54:08.157Z - **Package last seen:** 2026-10-16T11:25:08.945Z - **Known versions:** 52 - **Latest version:** 2.1.0 - **Appeal under review:** No - **Description:** Biologically-inspired memory for AI agents. Zero runtime deps, SQLite, MCP server, and an opt-in hosted TypeSafe Jev reranker. Decay, retrieval strengthening, consolidation. - **Author:** Keith - **Maintainers:** kitfunso - **Keywords:** memory, ai, agents, llm, claude, context, recall, episodic, semantic, embeddings, hybrid-search, agent-memory - **Runtime engines:** node: \>=22.16.0 - **Artifact files:** 275 - **Artifact unpacked size:** 3,680,655 bytes - **Artifact signatures:** 2 - **Attestations:** Yes - **Provenance:** https://slsa.dev/provenance/v1 ## References - [HTML security report]() - [Repository]() - [Homepage]() - [Issues]()