{"id":59737,"date":"2025-07-29T20:57:31","date_gmt":"2025-07-29T20:57:31","guid":{"rendered":""},"modified":"2025-10-28T00:14:19","modified_gmt":"2025-10-28T06:14:19","slug":"cve-2025-41240-unauthenticated-access-to-sensitive-kubernetes-secrets-via-bitnami-helm-charts","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-41240-unauthenticated-access-to-sensitive-kubernetes-secrets-via-bitnami-helm-charts\/","title":{"rendered":"CVE-2025-41240: Unauthenticated Access to Sensitive Kubernetes Secrets via Bitnami Helm Charts<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

CVE-2025-41240 is a serious cybersecurity vulnerability concerning Bitnami Helm charts. These charts, when deployed with specific default settings, can expose Kubernetes Secrets under a predictable path, potentially susceptible to HTTP\/S exploits. This vulnerability is of significant concern to organizations using Bitnami Helm charts for orchestrating their Kubernetes application deployments, as an attacker could potentially gain unauthenticated access<\/a> to sensitive credentials. The risk is exacerbated if the application is exposed externally, making this a critical concern for cloud-based deployments.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-41240
\nSeverity: Critical (10.0 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage, unauthorized access<\/a> to sensitive credentials.<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Bitnami Helm Charts | All versions prior<\/a> to the patch<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of the predictable path<\/a> (\/opt\/bitnami\/*\/secrets) under which Kubernetes Secrets are mounted by Bitnami Helm charts. If the application is exposed externally and the default setting of usePasswordFiles=true is used, these secrets become accessible via<\/a> HTTP\/S. This means a remote attacker could retrieve these secrets by simply accessing<\/a> specific URLs, achieving unauthenticated access to sensitive credentials and potentially leading to system compromise or data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

An attacker might exploit this vulnerability using a simple HTTP GET request<\/a>, like the following example:<\/p>\n

GET \/opt\/bitnami\/app\/secrets HTTP\/1.1\nHost: target.example.com<\/code><\/pre>\n
In response to such a request, the server could potentially expose sensitive Kubernetes Secrets in plaintext, which the attacker could then use to gain unauthorized access<\/a> or perform other malicious activities.<\/p>\n
Mitigation and Patching<\/strong><\/p>\n
To mitigate this vulnerability, users are advised to apply the vendor-provided patch as soon as possible. As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to identify and block attempts to exploit this vulnerability<\/a>. However, these systems merely provide a stopgap solution and don’t address the root cause of the vulnerability<\/a>. As such, application of the patch remains the most effective resolution method.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-41240 is a serious cybersecurity vulnerability concerning Bitnami Helm charts. These charts, when deployed with specific default settings, can expose Kubernetes Secrets under a predictable path, potentially susceptible to HTTP\/S exploits. This vulnerability is of significant concern to organizations using Bitnami Helm charts for orchestrating their Kubernetes application deployments, as an attacker could potentially […]<\/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,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[89],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59737","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-kubernetes"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t