VULNERABILITY INTELLIGENCE

CVE-2026-40966

CVSS score5.9 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2026-04-28
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Weakness classification

  • CWE-284: Improper Access Control

Primary references