{"id":86698,"date":"2026-03-16T03:20:58","date_gmt":"2026-03-16T03:20:58","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T06:00:00","slug":"cve-2024-42644-assertion-failure-in-flashmq-v1-14-0-leads-to-system-compromise-or-data-leakage","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2024-42644-assertion-failure-in-flashmq-v1-14-0-leads-to-system-compromise-or-data-leakage\/","title":{"rendered":"<strong>CVE-2024-42644: Assertion Failure in FlashMQ v1.14.0 Leads to System Compromise or Data Leakage<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The vulnerability, identified as CVE-2024-42644, is present in FlashMQ v1.14.0, a popular messaging and queuing software. This vulnerability is due to an assertion failure in the function PublishCopyFactory::getNewPublish. Attackers could exploit this vulnerability to potentially compromise the system or leak sensitive data. Given the widespread use of FlashMQ, this vulnerability poses a significant risk to numerous systems and data worldwide.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2024-42644<br \/>\nSeverity: High (7.5)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: System Compromise or Data Leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1468007113\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>FlashMQ | v1.14.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability exploits an assertion failure in the PublishCopyFactory::getNewPublish function of FlashMQ v1.14.0. When the Quality of Service (QoS) value of the publish object exceeds 0, the assertion failure is triggered. This results in abnormal termination of the service, creating an avenue for attackers to exploit the system or leak data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-95444730\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>The conceptual example below shows how a malicious actor might exploit this vulnerability through a network request with an excessive QoS value:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/publish HTTP\/1.1\nHost: vulnerable.flashmq.com\nContent-Type: application\/json\n{ &quot;QoS&quot;: 2, &quot;topic&quot;: &quot;test&quot;, &quot;message&quot;: &quot;test message&quot; }<\/code><\/pre>\n<p>In this example, the QoS value is set to 2, which is greater than the expected maximum value of 0. This would trigger the assertion failure, potentially leading to system compromise or data leakage.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>Users are urged to apply the vendor patch as soon as it becomes available. Until then, use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation against potential exploitation of this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The vulnerability, identified as CVE-2024-42644, is present in FlashMQ v1.14.0, a popular messaging and queuing software. This vulnerability is due to an assertion failure in the function PublishCopyFactory::getNewPublish. Attackers could exploit this vulnerability to potentially compromise the system or leak sensitive data. Given the widespread use of FlashMQ, this vulnerability poses a significant risk [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86698","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/86698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=86698"}],"version-history":[{"count":0,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/86698\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=86698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=86698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=86698"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=86698"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=86698"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=86698"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=86698"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=86698"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=86698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}