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I. Basic Information for CVE-2025-64509
Vulnerability Information

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Vulnerability Title
Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)
Source: NVD (National Vulnerability Database)
Vulnerability Description
Bugsink is a self-hosted error tracking tool. In versions prior to 2.0.6, a specially crafted Brotli-compressed envelope can cause Bugsink to spend excessive CPU time in decompression, leading to denial of service. This can be done if the DSN is known, which it is in many common setups (JavaScript, Mobile Apps). The issue is patched in Bugsink 2.0.6. The vulnerability is similar to, but distinct from, another brotli-related problem in Bugsink, GHSA-fc2v-vcwj-269v/CVE-2025-64508.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
Bugsink 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bugsink是Bugsink开源的一个自托管Bug跟踪软件。 Bugsink 2.0.6之前版本存在安全漏洞,该漏洞源于特制的Brotli压缩信封可能导致CPU时间过度消耗,可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
bugsinkbugsink < 2.0.6 -
II. Public POCs for CVE-2025-64509
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III. Intelligence Information for CVE-2025-64509
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IV. Related Vulnerabilities
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