{"answers":{"affected":"4 open source packages ship an affected version, including org.springframework.boot:spring-boot-rabbitmq. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-40971 in the wild and no public exploit code.","fix":"Upgrade org.springframework.boot:spring-boot-rabbitmq to a fixed version for your release line: 3.5.14 or 4.0.6.","what":"CVE-2026-40971 is a medium-severity vulnerability in Spring Boot, published on 27 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40971 and fix it if it is affected.\n\nWhat it is: CVE-2026-40971 is a medium-severity vulnerability in Spring Boot, published on 27 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-40971 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.springframework.boot:spring-boot-rabbitmq (Maven): affected from 3.5.0; fixed in 3.5.14\n- org.springframework.boot:spring-boot-rabbitmq (Maven): affected from 3.5.0; fixed in 3.5.14\n- org.springframework.boot:spring-boot-rabbitmq (Maven): affected from 4.0.0; fixed in 4.0.6\n- org.springframework.boot:spring-boot-rabbitmq (Maven): affected from 4.0.0; fixed in 4.0.6\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-40971/ (Markdown: https://insights.sbomify.com/CVE-2026-40971/index.md)","id":"CVE-2026-40971","markdown":"https://insights.sbomify.com/CVE-2026-40971/index.md","name":"CVE-2026-40971","record":{"aliases":["GHSA-9vc8-qppq-wvxc"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Spring Boot framework","requires_auth":"none","summary":"Attackers can bypass SSL hostname verification in Spring Boot RabbitMQ connections, enabling man-in-the-middle attacks when SSL bundles are configured.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"vmware","cpe":[{"product":"spring_boot","vendor":"vmware"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"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.\n\nAffected: 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.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Spring Boot's RabbitMQ auto-configuration doesn't perform hostname verification when connecting to the RabbitMQ broker","id":"CVE-2026-40971","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Spring Boot DevTools remote secret comparison is vulnerable to timing attacks","id":"CVE-2026-40972"},"packages":[{"ecosystem":"Maven","fixed":["3.5.14"],"introduced":["3.5.0"],"last_affected":[],"package":"org.springframework.boot:spring-boot-rabbitmq","purl":null,"source":"GHSA-9vc8-qppq-wvxc"},{"ecosystem":"Maven","fixed":["3.5.14"],"introduced":["3.5.0"],"last_affected":[],"package":"org.springframework.boot:spring-boot-rabbitmq","purl":"pkg:maven/org.springframework.boot/spring-boot-rabbitmq","source":"GHSA-9vc8-qppq-wvxc"},{"ecosystem":"Maven","fixed":["4.0.6"],"introduced":["4.0.0"],"last_affected":[],"package":"org.springframework.boot:spring-boot-rabbitmq","purl":null,"source":"GHSA-9vc8-qppq-wvxc"},{"ecosystem":"Maven","fixed":["4.0.6"],"introduced":["4.0.0"],"last_affected":[],"package":"org.springframework.boot:spring-boot-rabbitmq","purl":"pkg:maven/org.springframework.boot/spring-boot-rabbitmq","source":"GHSA-9vc8-qppq-wvxc"}],"prev":{"headline":"Spring Boot's Elasticsearch auto-configuration doesn't perform hostname verification when connecting to the Elasticsearch server.","id":"CVE-2026-40970"},"products":["Spring Boot"],"published":"2026-04-27","related":[{"cvss_score":9.8,"headline":"Spring Boot Security Bypass with Wildcard Pattern Matching on Cloud Foundry","id":"CVE-2023-20873","kev_date_added":null,"published":"2023-04-20"},{"cvss_score":9.1,"headline":"Spring Boot's default security filter chain has no authorization rule with Actuator but without Health","id":"CVE-2026-40976","kev_date_added":null,"published":"2026-04-27"},{"cvss_score":8.2,"headline":"Authentication Bypass under Actuator Health groups paths","id":"CVE-2026-22731","kev_date_added":null,"published":"2026-03-19"},{"cvss_score":8.2,"headline":"Authentication Bypass under Actuator CloudFoundry endpoints","id":"CVE-2026-22733","kev_date_added":null,"published":"2026-03-19"},{"cvss_score":7.8,"headline":"Temporary Directory Hijacking to Local Privilege Escalation Vulnerability in org.springframework.boot:spring-boot","id":"CVE-2022-27772","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":7.5,"headline":"Spring Boot DevTools remote secret comparison is vulnerable to timing attacks","id":"CVE-2026-40972","kev_date_added":null,"published":"2026-04-27"},{"cvss_score":7.5,"headline":"Spring Boot Welcome Page Denial of Service","id":"CVE-2023-20883","kev_date_added":null,"published":"2023-05-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-28","vendors":["Spring"]},"summary":"Attackers can bypass SSL hostname verification in Spring Boot RabbitMQ connections, enabling man-in-the-middle attacks when SSL bundles are configured.","url":"https://insights.sbomify.com/CVE-2026-40971/"}