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.
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History
Mon, 10 Nov 2025 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input | |
| Weaknesses | CWE-770 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2025-11-10T21:44:24.832Z
Updated: 2025-11-10T21:46:34.117Z
Reserved: 2025-11-05T21:15:39.399Z
Link: CVE-2025-64508
No data.
Status : Received
Published: 2025-11-10T22:15:39.640
Modified: 2025-11-10T22:15:39.640
Link: CVE-2025-64508
No data.