Connection Desynchronization in Google Cloud's AI Models
CVE-2025-11915

6.9MEDIUM

Key Information:

Vendor

Google Cloud

Status
Vertex Ai: Partner Models For Maas
Vertex Ai: Open Models For Maas
Vertex Ai: Self-deployed Models
Vendor
CVE Published:
22 October 2025

What is CVE-2025-11915?

A connection desynchronization issue has been identified between the HTTP proxy and the model backend of Google Cloud's AI systems. This vulnerability could potentially allow for unexpected behavior in communications between network components and service models. Fortunately, Google Cloud has implemented fixes for all affected proxies as of September 28, 2025, ensuring that users of Vertex AI do not need to take any further action to protect their systems.

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Deploy the Patch

Affected Version(s)

Vertex AI: Open Models for MaaS https://cloud.google.com/vertex-ai/generative-ai/docs/maas/use-open-models 0 < 2025-09-28

Vertex AI: Partner Models for MaaS https://cloud.google.com/vertex-ai/generative-ai/docs/partner-models/use-partner-models 0 < 2025-09-26

Vertex AI: Self-Deployed Models https://cloud.google.com/vertex-ai/generative-ai/docs/model-garden/self-deployed-models 0 < 2025-09-28

References

https://cloud.google.com/vertex-ai/generative-ai/docs/sec...

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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