{"id":74639,"date":"2025-09-13T21:05:08","date_gmt":"2025-09-13T21:05:08","guid":{"rendered":""},"modified":"2025-11-02T15:08:00","modified_gmt":"2025-11-02T21:08:00","slug":"cve-2025-58437-critical-vulnerability-in-coder-s-session-handling","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-58437-critical-vulnerability-in-coder-s-session-handling\/","title":{"rendered":"<strong>CVE-2025-58437: Critical Vulnerability in Coder\u2019s Session Handling<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A significant cybersecurity vulnerability, CVE-2025-58437, has been detected in the platform Coder, which is widely used by organizations to provision remote development environments via Terraform. The vulnerability exists in versions 2.22.0 through 2.24.3, 2.25.0 and 2.25.1 of the software. This flaw exposes <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7775-critical-memory-overflow-vulnerability-in-netscaler-adc-and-gateway-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"83777\">systems to potential<\/a> compromise and data leakage, thereby posing a serious threat to the security of users and organizations. Given the extent of Coder&#8217;s usage, this vulnerability is of substantial concern and demands immediate attention.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-58437<br \/>\nSeverity: Critical, CVSS score 8.1<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22404-potential-system-compromise-due-to-use-after-free-vulnerability\/\"  data-wpil-monitor-id=\"85647\">System compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1783780323\" 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>Coder | 2.22.0 &#8211; 2.24.3<br \/>\nCoder | 2.25.0 &#8211; 2.25.1<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45968-insecure-direct-object-reference-vulnerability-in-system-pdv-v1-0\/\"  data-wpil-monitor-id=\"83004\">vulnerability arises from insecure<\/a> session handling in Coder&#8217;s prebuilt workspaces. When a workspace is started, Coder generates a session token for the user, which is exposed via coder_workspace_owner.session_token. Prebuilt workspaces, owned by a built-in prebuilds system user, can be claimed by a different user. However, when a workspace is claimed, the previous session token for the prebuilds user is not expired, making it an exploitable vulnerability. Any Coder workspace <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-59340-jinjava-template-engine-vulnerability-leading-to-potential-remote-code-execution\/\"  data-wpil-monitor-id=\"90427\">templates that persist this automatically generated session token are potentially<\/a> impacted.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2006819428\" 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>Let&#8217;s illustrate this with a conceptual example. Suppose an attacker has somehow gained <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3498-unauthenticated-user-access-and-modification-of-radiflow-isap-smart-collector-configuration\/\"  data-wpil-monitor-id=\"92252\">access to the prebuilds user&#8217;s<\/a> session token. The attacker could then use this token in the following way:<\/p>\n<pre><code class=\"\" data-line=\"\">GET \/coder_workspace\/ HTTP\/1.1\nHost: vulnerable-coder.com\nAuthorization: Bearer {prebuilds-user-session-token}\n{ &quot;workspace_id&quot;: &quot;...&quot; }<\/code><\/pre>\n<p>In this example, the attacker uses the prebuilds user&#8217;s session token to gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7051-unauthorized-access-and-manipulation-of-syslog-configuration-in-n-central\/\"  data-wpil-monitor-id=\"84620\">unauthorized access<\/a> to the workspace data. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-45134-critical-vulnerability-in-mahara-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"82863\">potentially lead to data leakage or a system<\/a> compromise.<br \/>\nPlease remember, this is a conceptual example and not an actual exploit.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46715-kernel-pointer-vulnerability-in-sandboxie-versions-prior-to-1-15-12\/\"  data-wpil-monitor-id=\"82806\">vulnerability is fixed in versions<\/a> 2.24.4 and 2.25.2 of Coder. Therefore, users are strongly recommended to update their software to these versions immediately. As a temporary mitigation measure, users can apply a vendor patch or use Web Application Firewall (WAF) and Intrusion Detection Systems (IDS). Still, the most secure solution is to update to the patched versions of the software.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A significant cybersecurity vulnerability, CVE-2025-58437, has been detected in the platform Coder, which is widely used by organizations to provision remote development environments via Terraform. The vulnerability exists in versions 2.22.0 through 2.24.3, 2.25.0 and 2.25.1 of the software. This flaw exposes systems to potential compromise and data leakage, thereby posing a serious threat [&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-74639","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\/74639","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=74639"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74639\/revisions"}],"predecessor-version":[{"id":85468,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74639\/revisions\/85468"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=74639"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=74639"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=74639"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=74639"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=74639"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=74639"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=74639"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=74639"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=74639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}