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.
Published: 2026-04-28
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Data exfiltration
Action: Apply Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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
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'}


Subscriptions

Vmware Spring Ai
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