CVE-2026-40971 — MEDIUM (5.0)

Q: How severe is CVE-2026-40971?

CVE-2026-40971 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-40971?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Spring Boot.

Vulnerability Description

When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14) per vendor advisory.

CVSS Score

5.0

MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector

ADJACENT_NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Vmware	Spring Boot	>= 3.5.0, < 3.5.14

Related Weaknesses (CWE)

CWE-295

References

https://spring.io/security/cve-2026-40971Vendor Advisory

FAQ

What is CVE-2026-40971?

CVE-2026-40971 is a vulnerability with a CVSS score of 5.0 (MEDIUM). When configured to use an SSL bundle, Spring Boot's RabbitMQ auto-configuration does not perform hostname verification when connecting to the RabbitMQ broker. Affected: Spring Boot 4.0.0–4.0.5 (fix 4...

How severe is CVE-2026-40971?

CVE-2026-40971 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-40971?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Spring Boot.