Vulnerability · Published Apr 27, 2026 · Assigned by vmware
CVE-2026-40974
Medium 5.0
In plain English
A medium-severity improper certificate validation in Spring Boot from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.springframework.boot:spring-boot-cassandra | 4.0.6 | GHSA-mqvw-jfmh-93qq |
| Maven | org.springframework.boot:spring-boot-cassandra | 3.5.14 | GHSA-mqvw-jfmh-93qq |
| Maven | org.springframework.boot:spring-boot-cassandra | no fix listed | GHSA-mqvw-jfmh-93qq |
| Maven | org.springframework.boot:spring-boot-cassandra | no fix listed | GHSA-mqvw-jfmh-93qq |
| Maven | org.springframework.boot:spring-boot-cassandra | no fix listed | GHSA-mqvw-jfmh-93qq |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Boot | 4.0.0 – before 4.0.63.5.0 – before 3.5.143.4.0 – before 3.4.163.3.0 – before 3.3.192.7.0 – before 2.7.33 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L