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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-v6x6-pjxw-3pv2 Spring AI's VectorStoreChatMemoryAdvisor conversation scoping can lead to cross-tenant memory exfiltration
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 29 Apr 2026 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:*

Tue, 28 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 28 Apr 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Vmware
Vmware spring Ai
Vendors & Products Vmware
Vmware spring Ai

Tue, 28 Apr 2026 07:30:00 +0000

Type Values Removed Values Added
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.
Title VectorStoreChatMemoryAdvisor conversation scoping can lead to cross-tenant memory exfiltration
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-04-28T13:37:35.770Z

Reserved: 2026-04-16T02:18:56.133Z

Link: CVE-2026-40966

cve-icon Vulnrichment

Updated: 2026-04-28T13:37:29.665Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-28T08:16:01.283

Modified: 2026-04-29T18:18:01.317

Link: CVE-2026-40966

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T12:30:31Z

Weaknesses