@tigrisdata/cli@3.15.0

Command line interface for Tigris object storage

AI Security Review

scanned 16d ago · by lpm-firewall-ai

Inspected source confirms automatic first-party agent extension setup, which warrants a lifecycle warning. The scanner's malicious labels are not supported by a concrete blocking attack chain in the inspected behavior.

Static reason

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

Trigger

Dependency installation under node_modules when the Claude home directory and bundled skill exist.

Impact

Claude can receive package-provided instructions favoring Tigris, and an existing Tigris skill can be overwritten.

Mechanism

The postinstall hook creates the Tigris skill directory and copies SKILL.md into it without requesting consent.

AI rationale

Evidence

package.jsonpostinstall.cjsSKILL.md.claude

Decision evidence

public snapshot

AI called this Suspicious at 92.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json automatically runs postinstall.cjs after installation.
postinstall.cjs copies the bundled skill into the existing Claude home directory without prompting, potentially replacing the Tigris skill.
SKILL.md instructs agents to prefer Tigris for object storage tasks.
The browser configure command prompts for credentials and an endpoint rather than forcing an unofficial gateway.
The runtime skill registry references the Tigris-owned skills repository.

Evidence against

The install mutation is confined to the package-owned Tigris skill; inspected code does not broadly rewrite agent configuration.
No concrete credential theft, hidden payload execution, or malicious self-dependency chain was established.

Behavioral surface

Source

ChildProcessDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell

Supply chain

HighEntropyStrings

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"),Qre=(t,e)=>{if(Array.isArray(t)){for(let r=0;r<t.length;r++)if(typeof t[r]!="string")throw(0,$b.invalidArgType)(e+"["+r+"]","of type string",t[r]);retu... `+t);d0.printJson=lse});var Aj=z(fm=>{"use strict";f();d();u();Object.defineProperty(fm,"__esModule",{value:!0});var fC=(qi(),ui(Oo));fC.__exportStar(kj(),fm);fC.__exportStar(_j(),... `;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+" "+XB(e,","+l+" ")+l+n[1]};qn.reduceToSingleString=qZ});var eL=z(Se=>{"use strict";f();d();u();Object.defineProperty(Se,"__esModule",{v... 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-IPX5O5QV.jsView file

1import{e as l}from"./chunk-ADAR26VB.js";import{a as m,i as s}from"./chunk-PG24JJVL.js";import{b as i}from"./chunk-NI4EYBQH.js";import{a as t}from"./chunk-MFL7AQSM.js";import{exists...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/chunk-IPX5O5QV.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-IPX5O5QV.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@3.15.0.

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

Review the evidence and your use of @tigrisdata/cli@3.15.0 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: 2026-10-06 21:04:43.925Z (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