What’s Vulnerable › Vulnerabilities

CVE-2026-105772: Arbitrary file read and write in Google ADK TypeScript (@google/adk) FileArtifactService via path traversal in userId and sessionId

• Severity: critical (CVSS 9.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-20
• Weakness: CWE-22

Description

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 products

• Google ADK TypeScript (@google/adk): from 0.4.0 before 0.6.0 — fixed in 0.6.0

How to fix

Upgrade to a fixed version: Google ADK TypeScript (@google/adk) 0.6.0. Check the vendor advisory for mitigations.

References

• https://github.com/google/adk-js/commit/710b4ebed118b0ded8fc257e5d0099e6b2008bc0
• https://github.com/google/adk-js/commit/8c0eaa160a43c1d791d5838a5de6ac87d905cf70
• https://github.com/google/adk-js/pull/210
• https://github.com/google/adk-js/security/advisories/GHSA-8hc4-6xx6-3rh3

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