CVE-2026-40971CRITICAL 9.1EPSS p5.2%

CVE-2026-40971CVE-2026-40971

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.16% probability of exploitation · percentile 5.2% · 2026-06-19T12:03:05Z
Published2026-04-27
Last modified2026-05-14

Underlying weaknesses· 1

CWE-295

References

  1. https://spring.io/security/cve-2026-40971

1

TypeTargetConfidenceTier
WeaknessImproper Certificate Validationcwe-2950%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.