{"id":69811,"date":"2025-09-02T08:26:46","date_gmt":"2025-09-02T08:26:46","guid":{"rendered":""},"modified":"2025-09-12T02:15:03","modified_gmt":"2025-09-12T08:15:03","slug":"cve-2025-26467-privilege-escalation-vulnerability-in-apache-cassandra","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-26467-privilege-escalation-vulnerability-in-apache-cassandra\/","title":{"rendered":"<strong>CVE-2025-26467: Privilege Escalation Vulnerability in Apache Cassandra<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In this blog post, we are going to delve into a critical vulnerability, CVE-2025-26467, found in the popular open-source database management system, Apache Cassandra. This vulnerability pertains particularly to a Privilege Defined With Unsafe Actions vulnerability, which could potentially allow an attacker to escalate privileges to superuser within a target Cassandra cluster. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42950-sap-landscape-transformation-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"77580\">lead to a system<\/a> compromise or data leakage, presenting a significant risk to affected organizations. The severity of this issue is underscored by its high CVSS severity score of 8.8.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-26467<br \/>\nSeverity: High &#8211; 8.8 (CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low (MODIFY permission ON ALL KEYSPACES)<br \/>\nUser Interaction: None<br \/>\nImpact: Successful exploitation could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8939-buffer-overflow-vulnerability-in-tenda-ac20-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78283\">lead to system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3643424980\" 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>Apache Cassandra | 4.0.16<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of the fact that a user with MODIFY permission ON ALL KEYSPACES can execute unsafe actions on a system resource, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49665-race-condition-vulnerability-in-workspace-broker-leading-to-privilege-escalation\/\"  data-wpil-monitor-id=\"77625\">leading to a privilege<\/a> escalation. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48799-privilege-escalation-vulnerability-in-windows-update-service\/\"  data-wpil-monitor-id=\"77823\">privilege escalation<\/a> allows the user to acquire superuser privileges within a targeted Cassandra cluster, thereby gaining unrestricted access to all resources on the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1218637977\" 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>Here is a conceptual example of how the vulnerability might be exploited. Note that this is purely hypothetical and is provided only to help understand the nature of the vulnerability.<\/p>\n<pre><code class=\"\" data-line=\"\">\/\/ Login with a user having MODIFY permission ON ALL KEYSPACES\nlogin(&#039;userWithModifyPermission&#039;);\n\/\/ Perform unsafe action leading to privilege escalation\nunsafeAction(&#039;systemResource&#039;);\n\/\/ Now the user has superuser privileges\nselect * from system_auth.roles where is_superuser = true;<\/code><\/pre>\n<p>In the above example, &#8216;unsafeAction&#8217; represents an action that triggers the vulnerability, leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22889-intel-xeon-6-processor-privilege-escalation-vulnerability\/\"  data-wpil-monitor-id=\"78241\">privilege escalation<\/a>. The final <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46122-arbitrary-command-execution-vulnerability-in-commscope-ruckus-unleashed\/\"  data-wpil-monitor-id=\"78914\">command represents an action that could be executed<\/a> with superuser privileges, such as accessing all superuser roles in the system.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users are recommended to upgrade to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31279-critical-permission-issue-allowing-user-fingerprinting-in-macos-and-ipados\/\"  data-wpil-monitor-id=\"81913\">Apache<\/a> Cassandra 4.0.17 where this issue has been fixed. For users unable to immediately upgrade, applying a vendor patch or using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation measures. However, these are not long-term solutions and upgrading to a patched version is strongly recommended.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In this blog post, we are going to delve into a critical vulnerability, CVE-2025-26467, found in the popular open-source database management system, Apache Cassandra. This vulnerability pertains particularly to a Privilege Defined With Unsafe Actions vulnerability, which could potentially allow an attacker to escalate privileges to superuser within a target Cassandra cluster. This could [&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":[103],"product":[],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-69811","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apache","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69811","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=69811"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69811\/revisions"}],"predecessor-version":[{"id":74374,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/69811\/revisions\/74374"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=69811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=69811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=69811"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=69811"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=69811"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=69811"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=69811"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=69811"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=69811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}