Path Traversal Vulnerability in Google Cloud Agent Development Kit Versions
CVE-2026-79707

8.7HIGH

Key Information:

Vendor

Google Cloud

Status
Agent Development Kit (adk)
Vendor
CVE Published:
4 September 2026

What is CVE-2026-79707?

A Path Traversal vulnerability exists in the builder endpoint of Google Cloud Agent Development Kit (ADK) across a range of versions from 1.9.0 to 1.21.0. This vulnerability allows an unauthenticated remote attacker to exploit a crafted 'file_path' query parameter, enabling them to read arbitrary files on the server. Proper validation and sanitization of input are essential to mitigate the risk associated with this vulnerability, ensuring sensitive data remains protected.

Affected Version(s)

Agent Development Kit (ADK) 1.9.0 < 1.22.0

References

https://github.com/google/adk-python/blob/main/CHANGELOG....
https://github.com/google/adk-python/commit/6f259f08b3c45...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hagai Sason
.