CVE-2026-40974
published 2026-04-28CVE-2026-40974: Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra. Affected: Spring Boot…
PriorityP353critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.18%
7.9th percentile
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
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache | log4j | — | — |
| devspaces | openvsx-rhel9 | — | — |
| devspaces | pluginregistry-rhel9 | — | — |
| log4j_2 | log4j | — | — |
| spring | spring_boot | >= 2.7.0 < 2.7.33 | 2.7.33 |
| spring | spring_boot | >= 3.3.0 < 3.3.19 | 3.3.19 |
| spring | spring_boot | >= 3.4.0 < 3.4.16 | 3.4.16 |
| spring | spring_boot | >= 3.5.0 < 3.5.14 | 3.5.14 |
| spring | spring_boot | >= 4.0.0 < 4.0.6 | 4.0.6 |
| vmware | spring_boot | >= 2.7.0 < 2.7.33 | 2.7.33 |
| vmware | spring_boot | >= 3.3.0 < 3.3.19 | 3.3.19 |
| vmware | spring_boot | >= 3.4.0 < 3.4.16 | 3.4.16 |
| vmware | spring_boot | >= 3.5.0 < 3.5.14 | 3.5.14 |
| vmware | spring_boot | >= 4.0.0 < 4.0.6 | 4.0.6 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_redhat5.0MEDIUM
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VulDB
Vmware Spring Boot up to 4.0.5 Cassandra Auto-Configuration certificate validation
vuldb·2026-04-28·CVSS 5.0
CVE-2026-40974 [MEDIUM] Vmware Spring Boot up to 4.0.5 Cassandra Auto-Configuration certificate validation
A vulnerability was found in Vmware Spring Boot up to 2.7.32/3.3.18/3.4.15/3.5.13/4.0.5. It has been declared as critical. This vulnerability affects unknown code of the component Cassandra Auto-Configuration. Executing a manipulation can lead to improper certificate validation.
This vulnerability is registered as CVE-2026-40974. It is possible to launch the attack remotely. No exploit is available.
It is recommended to upgrade the affected component.
GHSA
Spring Boot's Cassandra SSL auto-configuration disables TLS hostname verification
ghsa·2026-04-28
CVE-2026-40974 [MEDIUM] CWE-295 Spring Boot's Cassandra SSL auto-configuration disables TLS hostname verification
Spring Boot's Cassandra SSL auto-configuration disables TLS hostname verification
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.
Red Hat
Spring Boot: Cassandra: Spring Boot: Security bypass in Cassandra SSL connections
vendor_redhat·2026-04-27·CVSS 5.0
CVE-2026-40974 [MEDIUM] CWE-295 Spring Boot: Cassandra: Spring Boot: Security bypass in Cassandra SSL connections
Spring Boot: Cassandra: Spring Boot: Security bypass in Cassandra SSL connections
A flaw was found in Spring Boot's Cassandra auto-configuration. This vulnerability allows an adjacent attacker to bypass hostname verification during SSL (Secure Sockets Layer) connection establishment to Cassandra. This could enable a man-in-the-middle attack, potentially leading to unauthorized information disclosure, data tampering, or denial of service.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Package: spring-boot (Red Hat AMQ Broker 7) - Fix deferred
Package: spring-boot (Red Hat AMQ Clients) - Fix
No detection rules found.
No public exploits indexed.
2026-04-28
Published