Incorrect Authorization Affecting google-adk package, versions [,2.5.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-GOOGLEADK-18426516
- published30 Jul 2026
- disclosed29 Jul 2026
- creditAviyam Ivgi
Introduced: 29 Jul 2026
NewCVE-2026-18236 (opens in a new tab)How to fix?
Upgrade google-adk to version 2.5.0 or higher.
Overview
google-adk is an Agent Development Kit
Affected versions of this package are vulnerable to Incorrect Authorization via the request confirmation processing in request_confirmation.py. An attacker can execute unauthorized tools by injecting or manipulating session-history events to forge a tool confirmation response. The vulnerable code accepted a confirmation without verifying that the target tool was registered for the executing agent, without checking that the tool actually required confirmation, and without matching the confirmed arguments to the original tool call recorded in history. As a result, a user can trigger tool execution that was never legitimately confirmed, leading to unauthorized actions in the agent session.