{"id":55012,"date":"2025-06-25T03:46:27","date_gmt":"2025-06-25T03:46:27","guid":{"rendered":""},"modified":"2025-10-03T12:32:27","modified_gmt":"2025-10-03T18:32:27","slug":"cve-2025-49651-critical-unauthorized-access-vulnerability-in-backendai","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-49651-critical-unauthorized-access-vulnerability-in-backendai\/","title":{"rendered":"<strong>CVE-2025-49651: Critical Unauthorized Access Vulnerability in BackendAI<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>Lablup&#8217;s BackendAI, a popular AI management solution, has a critical vulnerability identified as CVE-2025-49651. This vulnerability allows attackers to take over all active sessions, thereby accessing, stealing, or altering any data accessible in the session. All current versions of BackendAI are affected, making a large portion of AI <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20271-cisco-anyconnect-vpn-server-vulnerability-may-lead-to-dos-attacks\/\"  data-wpil-monitor-id=\"63233\">servers vulnerable<\/a>. This issue is significant due to the potential system compromise and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49796-exploiting-libxml2-memory-corruption-for-denial-of-service-and-data-leakage\/\"  data-wpil-monitor-id=\"61806\">data leakage that could occur if successfully exploited<\/a>, posing a severe risk to the integrity and confidentiality of sensitive data.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-49651<br \/>\nSeverity: Critical (CVSS: 8.1)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5866-critical-vulnerability-in-rt-thread-5-1-0-potentially-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"63838\">System compromise and data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2554613725\" 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>BackendAI | All current versions<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-49651 exploit takes advantage of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32281-high-severity-missing-authorization-vulnerability-in-focuxtheme-wpkit-for-elementor\/\"  data-wpil-monitor-id=\"65310\">missing authorization<\/a> check in BackendAI&#8217;s session management. This flaw <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25264-critical-vulnerability-allowing-unauthenticated-remote-access-due-to-overly-permissive-cors-policy\/\"  data-wpil-monitor-id=\"61911\">allows attackers to remotely<\/a> seize control of any active session by simply sending specially crafted network requests. Once a session is hijacked, the attacker has unrestricted <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49181-unauthorized-api-endpoint-access-leading-to-denial-of-service-and-data-leakage\/\"  data-wpil-monitor-id=\"61674\">access to all data<\/a> and resources within the session, leading to potential system compromise and data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-862149166\" 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 following conceptual example demonstrates how this vulnerability might be exploited. This is a sample <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6162-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-http-post-request-handler\/\"  data-wpil-monitor-id=\"62282\">HTTP request<\/a>, which an attacker might use to hijack an active session:<\/p>\n<pre><code class=\"\" data-line=\"\">GET \/BackendAI\/sessionID12345\/takeover HTTP\/1.1\nHost: vulnerable.example.com\nContent-Type: application\/json\n{&quot;session_control&quot;: &quot;hijack&quot;}<\/code><\/pre>\n<p><strong>Mitigation and Prevention<\/strong><\/p>\n<p>Users of BackendAI should immediately apply the vendor-provided patch to remediate this vulnerability. If the patch cannot be applied immediately, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"61586\">users are advised to use a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. These systems can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45984-critical-command-injection-vulnerability-detected-in-blink-routers\/\"  data-wpil-monitor-id=\"61587\">detect and block attempts to exploit this vulnerability<\/a>.<br \/>\nRemember, in the realm of <a href=\"https:\/\/www.ameeba.com\/blog\/introducing-the-ameeba-cybersecurity-group-chat\/\"  data-wpil-monitor-id=\"88410\">cybersecurity<\/a>, staying updated is equally as important as staying informed. Therefore, system administrators are always advised to keep software and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28389-critical-security-vulnerability-in-openc3-cosmos-v6-0-0-due-to-weak-password-requirements\/\"  data-wpil-monitor-id=\"61585\">security systems up-to-date to protect against the latest known vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Lablup&#8217;s BackendAI, a popular AI management solution, has a critical vulnerability identified as CVE-2025-49651. This vulnerability allows attackers to take over all active sessions, thereby accessing, stealing, or altering any data accessible in the session. All current versions of BackendAI are affected, making a large portion of AI servers vulnerable. This issue is significant [&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":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-55012","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55012","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=55012"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55012\/revisions"}],"predecessor-version":[{"id":81222,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/55012\/revisions\/81222"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=55012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=55012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=55012"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=55012"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=55012"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=55012"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=55012"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=55012"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=55012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}