GitHub Advisoryadvisory · PyPI

GHSA-rrx3-2x4g-mq2h Bugsink is vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)

HIGH Published 2025-11-13 Modified 2025-11-13 Official page ↗
Aliases
CVE-2025-64509
Ecosystem
PyPI
Packages
bugsink
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770
Reviewed
2025-11-13

Affected packages

• PyPI bugsink: < 2.0.6 → fixed in 2.0.6

Description

Impact In affected versions, 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). Patches Patched in Bugsink 2.0.6 References The vulnerability in this security advisory is similar to, but distinct from, another brotli-related problem in Bugsink: https://github.com/bugsink/bugsink/security/advisories/GHSA-fc2v-vcwj-269v

Related

Alias · CVE (1)

  • CVE-2025-64509 Bugsink is a self-hosted error tracking tool. vulnerability

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References