{"answers":{"affected":"17 open source packages ship an affected version, including org.apache.activemq:activemq-client, activemq and org.apache.activemq:activemq-openwire-legacy. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-27533 in the wild and no public exploit code.","fix":"Upgrade org.apache.activemq:activemq-client to a fixed version for your release line: 5.16.8, 5.17.7, 5.18.7 or 6.1.6.","what":"CVE-2025-27533 is a medium-severity denial of service vulnerability in Apache Activemq, published on 7 May 2025. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-27533 and fix it if it is affected.\n\nWhat it is: CVE-2025-27533 is a medium-severity denial of service vulnerability in Apache Activemq, published on 7 May 2025. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-27533 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.activemq:activemq-client (Maven): affected all versions; fixed in 5.16.8\n- org.apache.activemq:activemq-client (Maven): affected all versions; fixed in 5.16.8\n- org.apache.activemq:activemq-client (Maven): affected from 5.17.0; fixed in 5.17.7\n- org.apache.activemq:activemq-client (Maven): affected from 5.17.0; fixed in 5.17.7\n- org.apache.activemq:activemq-client (Maven): affected from 5.18.0; fixed in 5.18.7\n- org.apache.activemq:activemq-client (Maven): affected from 5.18.0; fixed in 5.18.7\n- org.apache.activemq:activemq-client (Maven): affected from 6.0.0; fixed in 6.1.6\n- org.apache.activemq:activemq-client (Maven): affected from 6.0.0; fixed in 6.1.6\n- activemq (Bitnami): affected from 5.16.0; fixed in 5.16.8, 5.17.7, 5.18.7, 6.1.6\n- org.apache.activemq:activemq-openwire-legacy (Maven): affected all versions; fixed in 5.16.8\n- org.apache.activemq:activemq-openwire-legacy (Maven): affected all versions; fixed in 5.16.8\n- org.apache.activemq:activemq-openwire-legacy (Maven): affected from 5.17.0; fixed in 5.17.7\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-2025-27533/ (Markdown: https://insights.sbomify.com/CVE-2025-27533/index.md)","id":"CVE-2025-27533","markdown":"https://insights.sbomify.com/CVE-2025-27533/index.md","name":"CVE-2025-27533","record":{"aliases":["BIT-activemq-2025-27533","DEBIAN-CVE-2025-27533","DLA-4222-1","GHSA-whxr-3p84-rf3c","OESA-2025-1507","ROOT-APP-MAVEN-CVE-2025-27533","UBUNTU-CVE-2025-27533"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Message broker","requires_auth":"high_privilege","summary":"Attackers can cause denial of service in Apache ActiveMQ by triggering excessive memory allocation during unmarshalling, requiring mitigation via upgrade or mutual TLS.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"activemq","vendor":"apache"}],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/AU:Y/R:A/V:D/RE:M/U:Red","version":"4.0"},"cwes":[{"id":"CWE-789","name":"Memory Allocation with Excessive Size Value"}],"description":"Memory Allocation with Excessive Size Value vulnerability in Apache ActiveMQ.\n\nDuring unmarshalling of OpenWire commands the size value of buffers was not properly validated which could lead to excessive memory allocation and be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on the availability of the ActiveMQ broker when not using mutual TLS connections.\nThis issue affects Apache ActiveMQ: from 6.0.0 before 6.1.6, from 5.18.0 before 5.18.7, from 5.17.0 before 5.17.7, before 5.16.8. ActiveMQ 5.19.0 is not affected.\n\nUsers are recommended to upgrade to version 6.1.6+, 5.19.0+,  5.18.7+, 5.17.7, or 5.16.8 or which fixes the issue.\n\nExisting users may implement mutual TLS to mitigate the risk on affected brokers.","ecosystems":["Bitnami","Maven"],"exploits":{"exploitdb":1,"first_seen":"2025-05-09","github_poc":1,"max_poc_stars":8,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-05-09T02:43:53Z","kind":"github_poc","ref":"https://github.com/absholi7ly/CVE-2025-27533-Exploit-for-Apache-ActiveMQ","stars":8,"title":"exploit for CVE-2025-27533, a Denial of Service (DoS) vulnerability in Apache ActiveMQ"},{"date":"2025-05-09","kind":"exploitdb","ref":"52288","stars":null,"title":"Apache ActiveMQ 6.1.6 - Denial of Service (DOS)"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Apache ActiveMQ: Unchecked buffer length can cause excessive memory allocation","id":"CVE-2025-27533","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:activemq","products":["apache:activemq"],"type":"denial_of_service","year":"2025"},"n_packages":17,"n_references":1,"next":{"headline":"arkcompiler_ets_runtime has an out-of-bounds read vulnerability","id":"CVE-2025-27534"},"packages":[{"ecosystem":"Bitnami","fixed":["5.16.8","5.17.7","5.18.7","6.1.6"],"introduced":["5.16.0","5.17.0","5.18.0","6.0.0"],"last_affected":[],"package":"activemq","purl":"pkg:bitnami/activemq","source":"BIT-activemq-2025-27533"},{"ecosystem":"Maven","fixed":["5.16.8"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.16.8"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":"pkg:maven/org.apache.activemq/activemq-client","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.17.7"],"introduced":["5.17.0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.17.7"],"introduced":["5.17.0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":"pkg:maven/org.apache.activemq/activemq-client","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.18.7"],"introduced":["5.18.0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.18.7"],"introduced":["5.18.0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":"pkg:maven/org.apache.activemq/activemq-client","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["6.1.6"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["6.1.6"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-client","purl":"pkg:maven/org.apache.activemq/activemq-client","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.16.8"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.16.8"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":"pkg:maven/org.apache.activemq/activemq-openwire-legacy","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.17.7"],"introduced":["5.17.0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.17.7"],"introduced":["5.17.0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":"pkg:maven/org.apache.activemq/activemq-openwire-legacy","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.18.7"],"introduced":["5.18.0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["5.18.7"],"introduced":["5.18.0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":"pkg:maven/org.apache.activemq/activemq-openwire-legacy","source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["6.1.6"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":null,"source":"GHSA-whxr-3p84-rf3c"},{"ecosystem":"Maven","fixed":["6.1.6"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-openwire-legacy","purl":"pkg:maven/org.apache.activemq/activemq-openwire-legacy","source":"GHSA-whxr-3p84-rf3c"}],"prev":{"headline":"Information disclosure in ctrlX OS - Device Admin","id":"CVE-2025-27532"},"products":["Apache ActiveMQ"],"published":"2025-05-07","related":[{"cvss_score":10,"headline":"Apache ActiveMQ Deserialization of Untrusted Data","id":"CVE-2023-46604","kev_date_added":"2023-11-02","published":"2023-10-27"},{"cvss_score":9.8,"headline":"Apache ActiveMQ Improper Input Validation","id":"CVE-2016-3088","kev_date_added":"2022-02-10","published":"2016-06-01"},{"cvss_score":8.8,"headline":"Apache ActiveMQ Improper Input Validation","id":"CVE-2026-34197","kev_date_added":"2026-04-16","published":"2026-04-07"},{"cvss_score":9.8,"headline":"Remote code execution in Apache ActiveMQ","id":"CVE-2020-11998","kev_date_added":null,"published":"2020-09-10"},{"cvss_score":9.8,"headline":"Command Injection in Xstream","id":"CVE-2013-7285","kev_date_added":null,"published":"2019-05-15"},{"cvss_score":9.8,"headline":"Improper Restriction of XML External Entity Reference in Apache ActiveMQ","id":"CVE-2014-3600","kev_date_added":null,"published":"2017-10-27"},{"cvss_score":9.8,"headline":"Improper Input Validation in Apache ActiveMQ","id":"CVE-2015-5254","kev_date_added":null,"published":"2016-01-08"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-03","vendors":["Apache Software Foundation"]},"summary":"Attackers can cause denial of service in Apache ActiveMQ by triggering excessive memory allocation during unmarshalling, requiring mitigation via upgrade or mutual TLS.","url":"https://insights.sbomify.com/CVE-2025-27533/"}