CVE-2026-40976In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints.
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No exploitation reported and no EPSS estimate yet.
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In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must: be a servlet-based web application; have no Spring Security configuration of its own and rely on the default web security filter chain; depend on spring-boot-actuator-autoconfigure; not depend on spring-boot-health. If any of the above does not apply, the application is not vulnerable. Affected: Spring Boot 4.0.0–4.0.5; upgrade to 4.0.6 or later per vendor advisory.
- CVSS
- 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-862, CWE-305
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- vmware
- NVD analysis
- Modified
- Record last updated
- Jul 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Spring Spring Boot spring:boot (from the name) | from 4.0.0 before 4.0.6 | CNA record |
Red Hat Red Hat AMQ Broker 7 redhat:amq_broker | 7 | CISA ADP |
Red Hat Red Hat AMQ Clients redhat:amq_clients | 2023 | CISA ADP |
Red Hat Red Hat build of Apache Camel for Spring Boot 4 redhat:camel_spring_boot | 4 | CISA ADP |
Red Hat Red Hat build of Apache Camel - HawtIO 4 redhat:apache_camel_hawtio | 4 | CISA ADP |
Red Hat Red Hat build of OptaPlanner 8 redhat:optaplanner | Versions not stated | CISA ADP |
Red Hat Red Hat Data Grid 8 redhat:jboss_data_grid | 8 | CISA ADP |
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | 8 | CISA ADP |
Red Hat Red Hat Fuse 7 redhat:jboss_fuse | 7 | CISA ADP |
Red Hat Red Hat JBoss Enterprise Application Platform 7 redhat:jboss_enterprise_application_platform | 7 | CISA ADP |
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp | Versions not stated | CISA ADP |
Red Hat Red Hat OpenShift Dev Spaces redhat:openshift_devspaces | 3 | CISA ADP |
Red Hat Red Hat Process Automation 7 redhat:jboss_enterprise_bpms_platform | 7 | CISA ADP |
Red Hat Red Hat Single Sign-On 7 redhat:red_hat_single_sign_on | 7 | CISA ADP |
vmware spring_boot vmware:spring_boot | from 4.0.0 before 4.0.6 | NVD |
References
- https://spring.io/security/cve-2026-40976vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-40976
- https://bugzilla.redhat.com/show_bug.cgi?id=2463322
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40976.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.