Vertex AI Deprecating Image & Video Generation Endpoints - Migration Required
AI Impact Summary
Generative AI on Vertex AI v1 Security On September 23, 2025, we discovered a technical issue in the Vertex AI API that resulted in a limited amount of responses being misrouted between recipients for certain third-party models when using streaming requests. This issue is now resolved. Google models, e.g. Gemini, were not impacted. Some internal proxies did not properly handle HTTP requests that have an Expect: 100-continue header, resulting in a desynchronization in a streaming response connection, where a response intended for one request was instead delivered as the response for a subsequent request. For more information, see Security bulletins .
Source text
Generative AI on Vertex AI v1 Security On September 23, 2025, we discovered a technical issue in the Vertex AI API that resulted in a limited amount of responses being misrouted between recipients for certain third-party models when using streaming requests. This issue is now resolved. Google models, e.g. Gemini, were not impacted. Some internal proxies did not properly handle HTTP requests that have an Expect: 100-continue header, resulting in a desynchronization in a streaming response connection, where a response intended for one request was instead delivered as the response for a subsequent request. For more information, see Security bulletins .
View original source- Date
- 30 Jun 2025
- Change type
- deprecation
- Severity
- high