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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.

PUBLISHED Reserved 2025-11-05 | Published 2025-11-10 | Updated 2025-11-12 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

< 2.0.6
affected

References

github.com/...ugsink/security/advisories/GHSA-rrx3-2x4g-mq2h

cve.org (CVE-2025-64509)

nvd.nist.gov (CVE-2025-64509)

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