{"id":54011,"date":"2025-06-22T08:14:44","date_gmt":"2025-06-22T08:14:44","guid":{"rendered":""},"modified":"2025-09-08T05:54:52","modified_gmt":"2025-09-08T11:54:52","slug":"cve-2025-49146-critical-channel-binding-authentication-vulnerability-in-postgresql-jdbc-driver","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-49146-critical-channel-binding-authentication-vulnerability-in-postgresql-jdbc-driver\/","title":{"rendered":"<strong>CVE-2025-49146: Critical Channel Binding Authentication Vulnerability in PostgreSQL JDBC Driver<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is under constant threat from various vulnerabilities, one of which is CVE-2025-49146. This vulnerability pertains to the PostgreSQL JDBC driver, also known as pgjdbc. It affects versions from 42.7.4 to 42.7.7. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49136-critical-vulnerability-in-listmonk-allows-unauthorized-access-to-sensitive-environment-variables\/\"  data-wpil-monitor-id=\"60369\">vulnerability matters because it can allow<\/a> a man-in-the-middle attacker to intercept connections that users believed were protected by channel binding requirements, which can potentially lead to grave scenarios such as system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-49146<br \/>\nSeverity: Critical (8.2 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5901-buffer-overflow-vulnerability-in-totolink-t10-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"60683\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-266083203\" 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>pgjdbc (PostgreSQL JDBC driver) | 42.7.4 to 42.7.7<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of the channel binding configuration in the PostgreSQL JDBC driver. When the driver is configured with channel binding set to &#8216;required&#8217;, it should only allow connections that support channel binding. However, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41661-unauthenticated-remote-command-execution-vulnerability-due-to-csrf-in-main-web-interface\/\"  data-wpil-monitor-id=\"61163\">due to this vulnerability<\/a>, it incorrectly allows connections with authentication methods that do not support channel binding, such as password, MD5, GSS, or SSPI authentication. This lapse in the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24325-improper-input-validation-in-intel-r-800-series-ethernet-driver-allows-potential-escalation-of-privilege\/\"  data-wpil-monitor-id=\"80493\">driver&#8217;s security can allow<\/a> a man-in-the-middle attacker to intercept and manipulate these connections.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-857796711\" 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>For illustrative purposes, a conceptual example of how the vulnerability might be exploited could look like this:<\/p>\n<pre><code class=\"\" data-line=\"\">Connection connection = DriverManager.getConnection(&quot;jdbc:postgresql:\/\/localhost\/test?user=postgres&amp;password=postgres&amp;sslmode=require&amp;channelBinding=require&quot;);\n\/\/ The connection will succeed even if the server does not support channel binding, allowing a potential man-in-the-middle attack.<\/code><\/pre>\n<p>Note: This is a simplified and hypothetical example. The actual exploitation process could be more complex and could involve additional steps or conditions.<\/p>\n<p><strong>Recommendations for Mitigation<\/strong><\/p>\n<p>The most effective <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39486-rankie-sql-injection-vulnerability-and-mitigation-measures\/\"  data-wpil-monitor-id=\"80038\">mitigation for this vulnerability<\/a> is to apply the vendor&#8217;s patch. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49137-critical-vulnerability-in-hax-cms-php-prior-to-version-11-0-0\/\"  data-wpil-monitor-id=\"61950\">vulnerability has been fixed in version<\/a> 42.7.7 of the PostgreSQL JDBC driver. So, users are advised to upgrade to this version or later. In the meantime, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. These tools can help detect and prevent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80036\">potential exploitation<\/a> attempts.<br \/>\nFinally, it&#8217;s recommended to always use trusted <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52950-unauthorized-access-exploitation-in-juniper-networks-security-director\/\"  data-wpil-monitor-id=\"80037\">networks and securely<\/a> configured servers. This can reduce the risk of man-in-the-middle attacks, which this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27818-critical-vulnerability-in-apache-kafka-enabling-java-deserialization-attacks\/\"  data-wpil-monitor-id=\"60682\">vulnerability could potentially enable<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is under constant threat from various vulnerabilities, one of which is CVE-2025-49146. This vulnerability pertains to the PostgreSQL JDBC driver, also known as pgjdbc. It affects versions from 42.7.4 to 42.7.7. This vulnerability matters because it can allow a man-in-the-middle attacker to intercept connections that users believed were protected by channel [&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-54011","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\/54011","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=54011"}],"version-history":[{"count":6,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/54011\/revisions"}],"predecessor-version":[{"id":72913,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/54011\/revisions\/72913"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=54011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=54011"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=54011"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=54011"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=54011"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=54011"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=54011"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=54011"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=54011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}