CVE-2025-65109 is a vulnerability classified under CWE-830, which pertains to the inclusion of web functionality from untrusted sources. Minder, an open source platform designed to enhance software supply chain security, suffers from this flaw in specific versions of its Helm and Go implementations. The vulnerability allows Minder users to fetch web content in the context of the Minder server, which may include URLs that the user would not normally have access to. This means that an attacker or a malicious user with limited privileges could exploit this flaw to access internal or restricted resources by leveraging the server’s context and permissions. The flaw arises because Minder does not adequately validate or restrict the URLs or web content sources it fetches, leading to potential unauthorized information disclosure or server-side request forgery (SSRF)-like behavior. The vulnerability affects Minder Helm version 0.20241106.3386+ref.2507dbf and Minder Go versions from 0.0.72 to 0.0.83 inclusive. The issue was publicly disclosed on November 21, 2025, and patches were released shortly thereafter in Minder Helm version 0.20250203.3849+ref.fdc94f0 and Minder Go version 0.0.84. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no authentication required (AT:N), no user interaction (UI:N), and partial impacts on confidentiality, integrity, and availability, with high scope and impact on confidentiality. No known exploits have been reported in the wild, but the high CVSS score suggests that exploitation could have serious consequences. Minder’s role in securing software supply chains means that exploitation could compromise the integrity and trustworthiness of software development and deployment pipelines, potentially leading to widespread supply chain attacks or data leakage.

For European organizations, the impact of CVE-2025-65109 is significant due to Minder’s role in software supply chain security, which is critical for maintaining the integrity and trustworthiness of software development and deployment processes. Exploitation could allow unauthorized access to internal URLs and resources, potentially exposing sensitive information or enabling further attacks within the network. This could lead to data breaches, disruption of software supply chain operations, and compromise of software integrity, which is particularly concerning for industries with stringent regulatory requirements such as finance, healthcare, and critical infrastructure. The vulnerability’s ability to be exploited remotely without user interaction and with limited privileges increases the risk profile. European organizations relying on Minder for supply chain security may face operational disruptions, reputational damage, and compliance violations if the vulnerability is exploited. Additionally, given the interconnected nature of software supply chains, a successful attack could propagate downstream, affecting multiple organizations and partners across Europe.

European organizations using Minder should immediately upgrade to the patched versions: Minder Helm version 0.20250203.3849+ref.fdc94f0 or later, and Minder Go version 0.0.84 or later. Beyond patching, organizations should implement strict network segmentation to limit the Minder server’s access to only necessary internal resources and URLs, reducing the attack surface. Employing web application firewalls (WAFs) with rules to detect and block SSRF-like requests can provide additional protection. Conduct thorough audits of Minder configurations and logs to detect any anomalous fetch requests or unauthorized access attempts. Incorporate runtime application self-protection (RASP) mechanisms if possible to monitor and block suspicious behavior in real time. Regularly review and enforce the principle of least privilege for users interacting with Minder to minimize potential exploitation vectors. Finally, integrate Minder vulnerability management into broader supply chain risk assessments and incident response plans to ensure rapid detection and containment of any exploitation attempts.