{"cve":"CVE-2026-40966","nvd":{"published":"2026-04-28T08:16:01.283","modified":"2026-10-26T21:10:00.170","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","score":5.9},"cwes":["CWE-284"],"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:N","https://spring.io/security/cve-2026-40966"],"products":["vmware:spring_ai"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-40966","score":0.00233,"percentile":0.14049,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-v6x6-pjxw-3pv2","url":"https://osv.dev/vulnerability/GHSA-v6x6-pjxw-3pv2","summary":"Spring AI's VectorStoreChatMemoryAdvisor conversation scoping can lead to cross-tenant memory exfiltration","modified":"2026-07-17T21:00:17.792643326Z","packages":[{"ecosystem":"Maven","name":"org.springframework.ai:spring-ai-advisors-vector-store","purl":"pkg:maven/org.springframework.ai/spring-ai-advisors-vector-store","ranges":[">=1.0.0 <1.0.6"],"fixed":["1.0.6"]},{"ecosystem":"Maven","name":"org.springframework.ai:spring-ai-advisors-vector-store","purl":"pkg:maven/org.springframework.ai/spring-ai-advisors-vector-store","ranges":[">=1.1.0 <1.1.5"],"fixed":["1.1.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}