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.

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Spring Spring Boot unaffected
Version Status Constraints
4.0.0 affected < 4.0.6
3.5.0 affected < 3.5.14
3.4.0 affected < 3.4.16
3.3.0 affected < 3.3.19
2.7.0 affected < 2.7.33

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://spring.io/security/cve-2026-40974 cve-icon cve-icon
History

Tue, 28 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
First Time appeared Spring
Spring spring Boot
Vendors & Products Spring
Spring spring Boot

Mon, 27 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 5, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-04-27T23:31:40.629Z

Reserved: 2026-04-16T02:19:04.615Z

Link: CVE-2026-40974

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-28T00:16:24.523

Modified: 2026-04-28T00:16:24.523

Link: CVE-2026-40974

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T02:00:14Z

Weaknesses