@tigrisdata/cli@3.17.1

Command line interface for Tigris object storage

AI Security Review

scanned 16h ago · by lpm-firewall-ai

The package runs an install hook that conditionally installs its own Tigris skill into an existing Claude skills directory without an explicit opt-in. The inspected skill is product-related, and the reviewed source does not establish broader control changes or data disclosure, supporting a warning rather than a block.

Static reason

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

Trigger

Installing the package as a dependency when the user's Claude directory and the packaged skill file exist.

Impact

Claude receives an additional Tigris CLI reference skill.

Mechanism

The hook creates ~/.claude/skills/tigris and copies the package's SKILL.md there.

AI rationale

Evidence

package.jsonpostinstall.cjsSKILL.md~/.claude/skills/tigris/SKILL.md

Decision evidence

public snapshot

AI called this Suspicious at 90.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json runs postinstall.cjs during dependency installation.
The install hook copies the package skill into an existing ~/.claude/skills/tigris directory without an explicit opt-in.
The copied skill provides Tigris object-storage CLI instructions and is marked not user-invocable.
The inspected dependency code parses proxy CONNECT response headers; it does not establish an attack surface.

Evidence against

The hook only attempts the copy when both the Claude directory and packaged skill exist.
The skill describes Tigris storage commands and the inspected content does not show private prompt or response export.

Behavioral surface

Source

ChildProcessDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Source & flagged code

8 flagged

package.jsonView file

•scripts.postinstall = node postinstall.cjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.cjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/browser/index.jsView file

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/browser/index.js: `+" ".repeat(t.indentationLvl)):"["+Error.prototype.toString.call(e)+"]",s.length===0)return a}else if((0,xe.hasBrand)(xe.arrayBufferByteLength,e)||xe.sharedArrayBufferByteLength!=... `),"ERR_INTERNAL_ASSERTION"),mne=(t,e)=>{if(Array.isArray(t)){for(let r=0;r<t.length;r++)if(typeof t[r]!="string")throw(0,Hb.invalidArgType)(e+"["+r+"]","of type string",t[r]);retu... `+t);g0.printJson=vse});var Pj=z(hm=>{"use strict";f();d();u();Object.defineProperty(hm,"__esModule",{value:!0});var gC=(qi(),fi(Oo));gC.__exportStar(Rj(),hm);gC.__exportStar(Ij(),... `;case"\\r":return"\r";case"\\t":return" ";case'\\"':return'"';case"

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/browser/index.jsView on unpkg

143`+" ".repeat(t.indentationLvl);return c+l+" "+nL(e,","+l+" ")+l+n[1]};qn.reduceToSingleString=iee});var aL=z(Se=>{"use strict";f();d();u();Object.defineProperty(Se,"__esModule",{... L144: `+" ".repeat(t.indentationLvl)):"["+Error.prototype.toString.call(e)+"]",s.length===0)return a}else if((0,xe.hasBrand)(xe.arrayBufferByteLength,e)||xe.sharedArrayBufferByteLength!=... L145: Please open an issue with this stack trace at https://github.com/nodejs/node/issues

Low

Eval

Package source references a known benign dynamic code generation pattern.

dist/browser/index.jsView on unpkg · L143

dist/chunk-IAAJ66FY.jsView file

1import{e as l}from"./chunk-PMFE4543.js";import{a as m,i as s}from"./chunk-UURDKGI7.js";import{b as i}from"./chunk-NI4EYBQH.js";import{a as t}from"./chunk-WJWKFYJJ.js";import{exists...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/chunk-IAAJ66FY.jsView on unpkg · L1

postinstall.cjsView file

1const { openSync, writeSync, closeSync, mkdirSync, copyFileSync, existsSync } = require('fs'); L2: const { join } = require('path'); ... L10: try { L11: const claudeDir = join(homedir(), '.claude'); L12: const skillDir = join(claudeDir, 'skills', 'tigris'); ... L15: if (existsSync(claudeDir) && existsSync(source)) { L16: mkdirSync(skillDir, { recursive: true }); L17: copyFileSync(source, join(skillDir, 'SKILL.md')); L18: }

Critical

Ai Agent Control Hijack

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

postinstall.cjsView on unpkg · L1

•matchType = normalized_sha256 matchedPackage = @tigrisdata/cli@3.11.0 matchedPath = postinstall.cjs matchedIdentity = npm:QHRpZ3Jpc2RhdGEvY2xp:3.11.0 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.

postinstall.cjsView on unpkg

dist/chunk-7UKHARLH.jsView file

•matchType = normalized_sha256 matchedPackage = @tigrisdata/cli@3.11.0 matchedPath = dist/chunk-7UKHARLH.js matchedIdentity = npm:QHRpZ3Jpc2RhdGEvY2xp:3.11.0 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/chunk-7UKHARLH.jsView on unpkg

Source & flagged code

8 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.cjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.cjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/browser/index.jsView file

Findings

1 Critical4 High5 Medium5 Low

CriticalAi Agent Control Hijackpostinstall.cjs

HighInstall Time Lifecycle Scriptspackage.json

HighCredential Redirect Persistencedist/browser/index.js

HighKnown Malware Source Similaritydist/chunk-7UKHARLH.js

HighKnown Malware Source Similaritypostinstall.cjs

MediumAmbiguous Install Lifecycle Scriptpackage.json

MediumDynamic Requiredist/chunk-IAAJ66FY.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowEvaldist/browser/index.js

LowFilesystem

Low

Affected versions and remediation

This report applies to @tigrisdata/cli@3.17.1.

See all versions of @tigrisdata/cli for other recorded verdicts.

Review the evidence and your use of @tigrisdata/cli@3.17.1 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: 2026-10-22 11:29:20.386Z (UTC).

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