CVE-2026-40974: Spring Boot's Cassandra SSL auto-configuration disables TLS hostname verification

April 28, 2026 (updated May 6, 2026)

Spring Boot’s Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra.

Affected: 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.

References

github.com/advisories/GHSA-mqvw-jfmh-93qq
github.com/spring-projects/spring-boot
nvd.nist.gov/vuln/detail/CVE-2026-40974
spring.io/security/cve-2026-40974

Code Behaviors & Features

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