CVE-2026-40971

MEDIUM

Spring Boot 4.0.0-4.0.5 - Auth Bypass

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 5.0
EPSS 0.0001
EPSS Percentile 2.7%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-295
Status published
Products (2)
Spring/Spring Boot 3.5.0 - 3.5.14
Spring/Spring Boot 4.0.0 - 4.0.6
Published Apr 27, 2026
Tracked Since Apr 28, 2026