CVE-2026-4810: CWE-306 Missing authentication for critical function in Google Cloud Agent Development Kit (ADK)
A Code Injection and Missing Authentication vulnerability in Google Agent Development Kit (ADK) versions 1.7.0 (and 2.0.0a1) through 1.28.1 (and 2.0.0a2) on Python (OSS), Cloud Run, and GKE allows an unauthenticated remote attacker to execute arbitrary code on the server hosting the ADK instance. This vulnerability was patched in versions 1.28.1 and 2.0.0a2. Customers need to redeploy the upgraded ADK to their production environments. In addition, if they are running ADK Web locally, they also need to upgrade their local instance.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-4810) in Google Cloud's Agent Development Kit (ADK) arises from missing authentication controls on critical functions combined with code injection flaws. It affects ADK versions from 1.7.0 and 2.0.0a1 up to 1.28.1 and 2.0.0a2 on Python OSS, Cloud Run, and GKE environments. An unauthenticated remote attacker can exploit this to execute arbitrary code on the server hosting the ADK instance. Google patched the vulnerability in versions 1.28.1 and 2.0.0a2. Customers are advised to redeploy these patched versions in production and upgrade local ADK Web instances. The vulnerability has a CVSS 4.0 score of 9.3, reflecting high impact and exploitability. The vendor manages remediation for the cloud service, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary code on servers running the vulnerable ADK versions, potentially leading to full compromise of the affected system. This impacts cloud environments including Cloud Run and GKE where ADK is deployed. The critical CVSS score of 9.3 reflects the high severity and potential for significant impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available and has been released in ADK versions 1.28.1 and 2.0.0a2. Customers should redeploy these upgraded versions to their production environments. Additionally, any local ADK Web instances must also be upgraded to the patched versions. Since this is a cloud-hosted service, Google manages remediation on their side for the cloud infrastructure. Users should verify they are running patched versions and follow vendor guidance for deployment.
CVE-2026-4810: CWE-306 Missing authentication for critical function in Google Cloud Agent Development Kit (ADK)
Description
A Code Injection and Missing Authentication vulnerability in Google Agent Development Kit (ADK) versions 1.7.0 (and 2.0.0a1) through 1.28.1 (and 2.0.0a2) on Python (OSS), Cloud Run, and GKE allows an unauthenticated remote attacker to execute arbitrary code on the server hosting the ADK instance. This vulnerability was patched in versions 1.28.1 and 2.0.0a2. Customers need to redeploy the upgraded ADK to their production environments. In addition, if they are running ADK Web locally, they also need to upgrade their local instance.
CVSS v4.0
Score 9.3critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-4810) in Google Cloud's Agent Development Kit (ADK) arises from missing authentication controls on critical functions combined with code injection flaws. It affects ADK versions from 1.7.0 and 2.0.0a1 up to 1.28.1 and 2.0.0a2 on Python OSS, Cloud Run, and GKE environments. An unauthenticated remote attacker can exploit this to execute arbitrary code on the server hosting the ADK instance. Google patched the vulnerability in versions 1.28.1 and 2.0.0a2. Customers are advised to redeploy these patched versions in production and upgrade local ADK Web instances. The vulnerability has a CVSS 4.0 score of 9.3, reflecting high impact and exploitability. The vendor manages remediation for the cloud service, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows unauthenticated remote attackers to execute arbitrary code on servers running the vulnerable ADK versions, potentially leading to full compromise of the affected system. This impacts cloud environments including Cloud Run and GKE where ADK is deployed. The critical CVSS score of 9.3 reflects the high severity and potential for significant impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available and has been released in ADK versions 1.28.1 and 2.0.0a2. Customers should redeploy these upgraded versions to their production environments. Additionally, any local ADK Web instances must also be upgraded to the patched versions. Since this is a cloud-hosted service, Google manages remediation on their side for the cloud infrastructure. Users should verify they are running patched versions and follow vendor guidance for deployment.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GoogleCloud
- Date Reserved
- 2026-03-25T12:55:06.694Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 69dcb49d82d89c981f86edcb
Added to database: 4/13/2026, 9:17:17 AM
Last enriched: 4/13/2026, 9:31:49 AM
Last updated: 5/29/2026, 8:39:22 AM
Views: 175
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