CVE-2025-64509

Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)

CVSS 7.5 HIGHEPSS 0.3%CWE-770

Vexday Risk Score

21Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 7.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

10 nov 2025Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

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

Produtos afetados

bugsink · bugsink

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Referências

https://github.com/bugsink/bugsink/security/advisories/GHSA-rrx3-2x4g-mq2h