Denial of Service Vulnerability in Bugsink Error Tracking Tool

CVE-2025-64508

What is CVE-2025-64508?

Bugsink, a self-hosted error tracking tool, contains a vulnerability that allows attackers to exploit highly compressed brotli streams, potentially leading to Denial of Service. By sending specifically crafted brotli 'bombs' to the server, which attempts to decompress them, memory resources can be exhausted. This issue arises in setups where the Data Source Name (DSN) is exposed, common in various applications like JavaScript or Mobile Apps, making it crucial for administrators to upgrade to Bugsink version 2.0.5 or later. The vulnerability resembles another brotli-related issue in Bugsink (GHSA-rrx3-2x4g-mq2h) but is distinct in execution and impact.

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