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CVE-2026-18236— Google-ADK Continuation Forgery

Quick assessment

Affected
Google Google-ADK
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google Agent Development Kit是美国Google公司的一个智能体开发工具包。 Google Agent Development Kit 2.5.0之前版本存在授权问题漏洞，该漏洞源于框架未验证目标工具是否注册、未验证工具是否需要确认、未匹配确认参数与原始工具调用事件，可能导致攻击者操纵或注入会话历史事件伪造工具确认响应，从而执行未授权工具。

CVSS 9.3 · Critical EPSS 0.22% · P11

Affected Version Matrix 1

VendorProduct Version RangeStatus
Google Google-ADK < 2.5.0 affected
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I. Basic Information for CVE-2026-18236

Vulnerability Information
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Vulnerability Title
Google-ADK Continuation Forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Agent Development Kit (ADK) allows for continuation forgery in tool confirmations. An attacker who is able to manipulate or inject events into the session history can execute unauthorized tools by forging a tool confirmation response. This is possible because the framework did not verify if the target tool was registered to the executing agent, did not validate if the tool actually required confirmation, and did not match the confirmation arguments against the original tool call event in the history.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Google Agent Development Kit 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Agent Development Kit是美国Google公司的一个智能体开发工具包。 Google Agent Development Kit 2.5.0之前版本存在授权问题漏洞，该漏洞源于框架未验证目标工具是否注册、未验证工具是否需要确认、未匹配确认参数与原始工具调用事件，可能导致攻击者操纵或注入会话历史事件伪造工具确认响应，从而执行未授权工具。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Google Google-ADK < 2.5.0 -

II. Public POCs for CVE-2026-18236

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9491 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
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Exploit chain & mitigation
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III. Intelligence Information for CVE-2026-18236

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IV. Related Vulnerabilities

Same vendor: Google
Same weakness: CWE-863

V. Comments for CVE-2026-18236

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