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 Spring Products and Versions Spring AI: 1.0.0 - 1.0.x 1.1.0 - 1.1.x Mitigation Users of affected versions should upgrade to the corresponding fixed version. Affected version(s) Fix version Availability 1.0.x 1.0.6 OSS 1.1.x 1.1.5 OSS No further mitigation steps are necessary. Credit The issue was reported responsibly by Jinyeong Seol Seol-JY Cantina's AppSec agent, Apex ( https://www.cantina.security ) 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