{"id":"CVE-2026-40974","aliases":["GHSA-mqvw-jfmh-93qq"],"url":"https://o3.security/vulnerability/CVE-2026-40974","summary":"Spring Boot's Cassandra SSL auto-configuration disables TLS hostname verification","details":"Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra.\n\nAffected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); Cassandra SSL auto-configuration. Versions that are no longer supported are also affected per vendor advisory.","published":"2026-04-27T23:31:40.629Z","modified":"2026-08-12T03:51:33.771102864Z","cvss":{"score":5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"},"epss":{"score":0.00182,"percentile":0.07998,"asOf":"2026-08-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":"4.0.6"},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":"3.5.14"},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":null},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":null},{"ecosystem":"Maven","name":"org.springframework.boot:spring-boot-cassandra","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"https://spring.io/security/cve-2026-40974"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40974.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40974"},{"type":"PACKAGE","url":"https://github.com/spring-projects/spring-boot"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:33.771102864Z"}}