CVE-2026-40966 (GCVE-0-2026-40966)

Vulnerability from cvelistv5 – Published: 2026-04-28 06:42 – Updated: 2026-04-28 13:37
VLAI
Title
VectorStoreChatMemoryAdvisor conversation scoping can lead to cross-tenant memory exfiltration
Summary
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.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-28 13:18 UTC
CWE
  • CWE-284 - Improper Access Control
Assigner
vmware CNA under the mitre root
CNA scorecard C 64/100 over 233 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
VMware Spring AI Affected: 1.0.0 , < 1.0.6 (OSS)
Affected: 1.1.0 , < 1.1.5 (oss)
guessed Create a notification for this product.
Credits
Jinyeong Seol Seol-JY; Cantina's AppSec agent, Apex ( https://www.cantina.security )
Show details on NVD website
To clipboard 

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