CVE-2026-40966

MediumCVSS 5.9/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 5.9/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-284

Affected software

Vendor	Product	Versions
VMware	Spring AI	>= 1.0.0, < 1.0.6; >= 1.1.0, < 1.1.5

References

https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?version=3.1&vector=AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NUS Government Resource
https://spring.io/security/cve-2026-40966Vendor Advisory

Timeline

Published: Apr 28, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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