---
id: CVE-2026-105772
title: >-
  Arbitrary file read and write in Google ADK TypeScript (@google/adk)
  FileArtifactService via path traversal in userId and sessionId
summary: >-
  Path Traversal (CWE-22) in FileArtifactService in Google ADK TypeScript
  (@google/adk) versions 0.4.0 before 0.6.0 allows a remote unauthenticated
  attacker to read files matching the artifact directory layout or write files
  (when an agent…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-22
vendor: Google
product: '@google/adk'
affected:
  - '@google/adk >= 0.4.0 < 0.6.0'
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-20T18:03:11.873837Z'
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T18:08:00.481Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-105772'
references:
  - url: 'https://github.com/google/adk-js/security/advisories/GHSA-8hc4-6xx6-3rh3'
  - url: 'https://github.com/google/adk-js/pull/210'
  - url: >-
      https://github.com/google/adk-js/commit/8c0eaa160a43c1d791d5838a5de6ac87d905cf70
  - url: >-
      https://github.com/google/adk-js/commit/710b4ebed118b0ded8fc257e5d0099e6b2008bc0
tags:
  - cve.org
ingestedAt: '2026-10-20T18:14:37.216Z'
---

## Overview

Path Traversal (CWE-22) in FileArtifactService in Google ADK TypeScript (@google/adk) versions 0.4.0 before 0.6.0 allows a remote unauthenticated attacker to read files matching the artifact directory layout or write files (when an agent tool invokes saveArtifact) outside the intended artifact storage root via crafted relative or percent-encoded path traversal sequences (such as ../ or ..%2F) in the userId or sessionId parameters when the ADK API server is exposed with the non-default FileArtifactService enabled. Applications using the default InMemoryArtifactService are unaffected. Upgrade to @google/adk version 0.6.0 or later.

## Affected

- `@google/adk >= 0.4.0 < 0.6.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.