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2656 articles · 130312 vulns · 36/41 feeds (7d)
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5.9
CVE-2026-40966EXPLOITEDPATCHED
spring · spring ai

VectorStoreChatMemoryAdvisor conversation scoping can lead to cross-tenant memory exfiltration

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.

Affected Products

VendorProductVersions
springspring ai1.0.0, 1.1.0

References

  • https://spring.io/security/cve-2026-40966
  • 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:N

Related News (2 articles)

Tier C
VulDB1d ago
CVE-2026-40966 | Vmware Spring AI up to 1.0.5/1.1.4 Conversation access control
→ No new info (linked only)
Tier B
CERT-FR1d ago
Multiples vulnérabilités dans Spring (28 avril 2026)
→ No new info (linked only)
CVSS 3.15.9 MEDIUM
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
1.0.61.1.5
CWECWE-284
PublishedApr 28, 2026
Last enriched1d agov2
Tags
CVE-2026-40966
Trending Score47
Source articles2
Independent2
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

HIGHCVE-2026-40967EXP
CVE-2026-40967: In Spring AI, various FilterExpressionConverter implementations accept a filter expression object and translate them to
Trending: 62
CRITICALCVE-2026-40976EXP
CVE-2026-40976: In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoint
Trending: 55
HIGHCVE-2026-40978EXP
CVE-2026-40978: SQL injection vulnerability in Spring AI's `CosmosDBVectorStore` allows attackers to execute arbitrary SQL queries via c
Trending: 55
HIGHCVE-2026-40968EXP
Spring gRPC SecurityContext leaks across requests on authorization failure
Trending: 42
CRITICALCVE-2026-40974EXP
CVE-2026-40974: Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to
Trending: 42

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Apr 28, 2026
Discovered by ZDM
Apr 28, 2026
Updated: severity, affectedVersions, activelyExploited, tags
Apr 28, 2026
Actively Exploited
Apr 28, 2026
Patch Available
Apr 28, 2026

Version History

v2
Last enriched 1d ago
v2Tier C1d ago

Updated severity to CRITICAL, added affected versions 1.0.5 and 1.1.4, and noted that the vulnerability is actively exploited.

severityaffectedVersionsactivelyExploitedtags
via VulDB
v11d ago

Initial creation