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Medium · 5.9 CVE-2026-40966 EUVD-2026-26002GHSA-v6x6-pjxw-3pv2

VectorStoreChatMemoryAdvisor conversation scoping can lead to cross-tenant memory exfiltration

Published Apr 28, 2026 · Updated Apr 28, 2026 · Assigned by vmware

Description

In Spring AI, an attacker can bypass conversation isolation and exfiltrate sensitive memory from other users’ chat histories, including secrets and credentials, by injecting filter logic through conversationId. Only applications that use VectorStoreChatMemoryAdvisor and pass user-supplied input as a conversationId are affected.

Affected products

VendorProductAffectedFixed
VMware Spring AI 1.0.0 – < 1.0.6, 1.1.0 – < 1.1.5 1.0.6

Affected packages

EcosystemPackageAffectedFixedRecord
Maven org.springframework.ai:spring-ai-advisors-vector-store >= 1.0.0, < 1.0.6 1.0.6 GHSA-v6x6-pjxw-3pv2
Maven org.springframework.ai:spring-ai-advisors-vector-store >= 1.1.0, < 1.1.5 1.1.5 GHSA-v6x6-pjxw-3pv2

References