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I. Basic Information for CVE-2025-64508
Vulnerability Information

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Vulnerability Title
Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input
Source: NVD (National Vulnerability Database)
Vulnerability Description
Bugsink is a self-hosted error tracking tool. In versions prior to 2.0.5, brotli "bombs" (highly compressed brotli streams, such as many zeros) can be sent to the server. Since the server will attempt to decompress these streams before applying various maximums, this can lead to exhaustion of the available memory and thus a 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 version `2.0.5`. The vulnerability is similar to, but distinct from, another brotli-related problem in Bugsink, GHSA-rrx3-2x4g-mq2h/CVE-2025-64509.
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 2.0.5之前版本存在安全漏洞,该漏洞源于服务器在处理高度压缩的brotli流时未应用最大限制,可能导致内存耗尽和拒绝服务攻击。
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 < 2.0.5 -
II. Public POCs for CVE-2025-64508
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III. Intelligence Information for CVE-2025-64508
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IV. Related Vulnerabilities
V. Comments for CVE-2025-64508

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