{"answers":{"affected":"19 open source packages ship an affected version, including org.apache.activemq:activemq-all, activemq and org.apache.activemq:activemq-mqtt. It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-66168 in the wild and no public exploit code.","fix":"Upgrade org.apache.activemq:activemq-all to a fixed version for your release line: 5.19.2, 6.1.9 or 6.2.1.","what":"CVE-2025-66168 is a medium-severity vulnerability in Apache Activemq, published on 4 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-66168 and fix it if it is affected.\n\nWhat it is: CVE-2025-66168 is a medium-severity vulnerability in Apache Activemq, published on 4 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-66168 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.activemq:activemq-all (Maven): affected all versions; fixed in 5.19.2\n- org.apache.activemq:activemq-all (Maven): affected all versions; fixed in 5.19.2\n- org.apache.activemq:activemq-all (Maven): affected from 6.0.0; fixed in 6.1.9\n- org.apache.activemq:activemq-all (Maven): affected from 6.0.0; fixed in 6.1.9\n- org.apache.activemq:activemq-all (Maven): affected from 6.2.0; fixed in 6.2.1\n- org.apache.activemq:activemq-all (Maven): affected from 6.2.0; fixed in 6.2.1\n- activemq (Bitnami): affected all versions; fixed in 5.19.2, 6.1.9, 6.2.1\n- org.apache.activemq:activemq-mqtt (Maven): affected all versions; fixed in 5.19.2\n- org.apache.activemq:activemq-mqtt (Maven): affected all versions; fixed in 5.19.2\n- org.apache.activemq:activemq-mqtt (Maven): affected from 6.0.0; fixed in 6.1.9\n- org.apache.activemq:activemq-mqtt (Maven): affected from 6.0.0; fixed in 6.1.9\n- org.apache.activemq:activemq-mqtt (Maven): affected from 6.2.0; fixed in 6.2.1\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-2025-66168/ (Markdown: https://insights.sbomify.com/CVE-2025-66168/index.md)","id":"CVE-2025-66168","markdown":"https://insights.sbomify.com/CVE-2025-66168/index.md","name":"CVE-2025-66168","record":{"aliases":["BIT-activemq-2025-66168","DEBIAN-CVE-2025-66168","GHSA-c825-6ph3-4h84","MINI-5r4w-mrf3-qx8x","MINI-97j5-568x-vw27","MINI-fx38-h72q-qmh9","MINI-p93g-jw37-gfv9","OESA-2026-1607","OESA-2026-1608","OESA-2026-1609","OESA-2026-1610","OESA-2026-1611","OESA-2026-1679","OESA-2026-1680","OESA-2026-1681","ROOT-APP-MAVEN-CVE-2025-66168","UBUNTU-CVE-2025-66168"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service","other"],"network_reachable":"yes","non_default_config":true,"product_category":"Message broker","requires_auth":"low_privilege","summary":"An integer overflow in MQTT packet decoding allows unexpected broker behavior, requiring MQTT transport connectors to be enabled.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"activemq","vendor":"apache"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"WARNING:\n\nUsers of 6.x should upgrade to 6.2.4 or later as the fix was missed in previous 6.x releases.\n\nSee the  following for more details:\n https://activemq.apache.org/security-advisories.data/CVE-2026-40046-announcement.txt \n https://www.cve.org/CVERecord?id=CVE-2026-40046 \n\nOriginal Report:\n\nApache ActiveMQ does not properly validate the remaining length field which may lead to an overflow during the decoding of malformed packets. When this integer overflow occurs, ActiveMQ may incorrectly compute the total Remaining Length and subsequently misinterpret the payload as multiple MQTT control packets which makes the broker susceptible to unexpected behavior when interacting with non-compliant clients. This behavior violates the MQTT v3.1.1 specification, which restricts Remaining Length to a maximum of 4 bytes. The scenario occurs on established connections after the authentication process. Brokers that are not enabling mqtt transport connectors are not impacted.\n\nThis issue affects Apache ActiveMQ: before 5.19.2, 6.0.0 to 6.1.8, and 6.2.0\n\nUsers are recommended to upgrade to version 5.19.2, 6.1.9, or 6.2.1, which fixes the issue.","ecosystems":["Bitnami","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":"Apache ActiveMQ is Vulnerable to Integer Overflow or Wraparound","id":"CVE-2025-66168","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"apache:activemq","products":["apache:activemq"],"type":"integer_overflow","year":"2025"},"n_packages":19,"n_references":3,"next":{"headline":"Apache Camel Neo4j: Cypher injection vulnerability in Camel-Neo4j component","id":"CVE-2025-66169"},"packages":[{"ecosystem":"Bitnami","fixed":["5.19.2","6.1.9","6.2.1"],"introduced":["0","6.0.0","6.2.0"],"last_affected":[],"package":"activemq","purl":"pkg:bitnami/activemq","source":"BIT-activemq-2025-66168"},{"ecosystem":"Maven","fixed":["5.19.2"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-all","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["5.19.2"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-all","purl":"pkg:maven/org.apache.activemq/activemq-all","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.1.9"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-all","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.1.9"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-all","purl":"pkg:maven/org.apache.activemq/activemq-all","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.2.1"],"introduced":["6.2.0"],"last_affected":[],"package":"org.apache.activemq:activemq-all","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.2.1"],"introduced":["6.2.0"],"last_affected":[],"package":"org.apache.activemq:activemq-all","purl":"pkg:maven/org.apache.activemq/activemq-all","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["5.19.2"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-mqtt","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["5.19.2"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:activemq-mqtt","purl":"pkg:maven/org.apache.activemq/activemq-mqtt","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.1.9"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-mqtt","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.1.9"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:activemq-mqtt","purl":"pkg:maven/org.apache.activemq/activemq-mqtt","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.2.1"],"introduced":["6.2.0"],"last_affected":[],"package":"org.apache.activemq:activemq-mqtt","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.2.1"],"introduced":["6.2.0"],"last_affected":[],"package":"org.apache.activemq:activemq-mqtt","purl":"pkg:maven/org.apache.activemq/activemq-mqtt","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["5.19.2"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:apache-activemq","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["5.19.2"],"introduced":["0"],"last_affected":[],"package":"org.apache.activemq:apache-activemq","purl":"pkg:maven/org.apache.activemq/apache-activemq","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.1.9"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:apache-activemq","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.1.9"],"introduced":["6.0.0"],"last_affected":[],"package":"org.apache.activemq:apache-activemq","purl":"pkg:maven/org.apache.activemq/apache-activemq","source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.2.1"],"introduced":["6.2.0"],"last_affected":[],"package":"org.apache.activemq:apache-activemq","purl":null,"source":"GHSA-c825-6ph3-4h84"},{"ecosystem":"Maven","fixed":["6.2.1"],"introduced":["6.2.0"],"last_affected":[],"package":"org.apache.activemq:apache-activemq","purl":"pkg:maven/org.apache.activemq/apache-activemq","source":"GHSA-c825-6ph3-4h84"}],"prev":{"headline":"WordPress Lottier plugin \u003c= 1.1.1 - Broken Access Control vulnerability","id":"CVE-2025-66167"},"products":["Apache ActiveMQ","Apache ActiveMQ All Module","Apache ActiveMQ MQTT Module"],"published":"2026-03-04","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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-10","vendors":["Apache Software Foundation"]},"summary":"An integer overflow in MQTT packet decoding allows unexpected broker behavior, requiring MQTT transport connectors to be enabled.","url":"https://insights.sbomify.com/CVE-2025-66168/"}