{"identifier":"CVE-2026-40966","cve":{"id":"CVE-2026-40966","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":"2026-04-28T08:16:01.283000+00:00","modified":"2026-10-26T21:10:00.170000+00:00","status":"Analyzed","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"1.0.6"},{"criteria":"cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:*","versionStartIncluding":"1.1.0","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"1.1.5"}],"weaknesses":["CWE-284"],"references":[{"url":"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","source":"security@vmware.com","tags":["US Government Resource"]},{"url":"https://spring.io/security/cve-2026-40966","source":"security@vmware.com","tags":["Vendor Advisory"]}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"security@vmware.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":5.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-28T13:18:57.595874Z","id":"CVE-2026-40966","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.0.6","matchCriteriaId":"1CD6DC44-CDE8-47E4-A788-6D8AE716396F"},{"vulnerable":true,"criteria":"cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:*","versionStartIncluding":"1.1.0","versionEndExcluding":"1.1.5","matchCriteriaId":"5013645B-3914-4A40-8D42-CB47344963A7"}]}]}],"source":"nvd","retrieved_at":"2026-10-28T10:19:44.926266+00:00","exploited":false,"kev_stale":false,"products":["vmware / spring ai"],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.00233,"percentile":0.14102,"date":"2026-10-27","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"nvd.nist.gov","source_url":"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","investigate_url":"https://investigate.aeglixmind.com/#nvd.nist.gov"},{"domain":"spring.io","source_url":"https://spring.io/security/cve-2026-40966","investigate_url":"https://investigate.aeglixmind.com/#spring.io"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-40966","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-40966","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-40966","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}