Google Cloud Agent Development Kit up to 1.21.x Builder Endpoint file_path path traversal

Summaryinfo

A vulnerability has been found in Google Cloud Agent Development Kit up to 1.21.x and classified as problematic. This impacts an unknown function of the component Builder Endpoint. This manipulation of the argument file_path causes path traversal. This vulnerability is tracked as CVE-2026-79707. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in Google Cloud Agent Development Kit up to 1.21.x. Affected by this vulnerability is an unknown part of the component Builder Endpoint. The manipulation of the argument file_path with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. The summary by CVE is:

A Path Traversal vulnerability in the builder endpoint in Google Cloud Agent Development Kit (ADK) versions 1.9.0 through 1.21.0 on Python allows an unauthenticated remote attacker to read arbitrary files using a crafted file_path query parameter.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-79707 since 08/25/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/04/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 1.22.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-70994). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Cloud Software

Vendor

• Google Cloud

Name

• Agent Development Kit

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21

License

• free

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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CVSSv3info

CVSSv2info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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