CVE-2025-64508
Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input
Vexday Risk Score
21Bajo
Decisión SSVC (CISA)
Track
Sin señal de explotación → monitorear
CVSS 7.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
10 nov 2025Publicada en NVD
Recomendación: Monitorear — sin señal de explotación por ahora.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
bugsink · bugsink¿Quieres saber si tu infraestructura está expuesta a esto?
Hablar con TrueHacking →Referencias
https://github.com/bugsink/bugsink/commit/3f65544aab3ad5303d97009136640de97b0676a5https://github.com/bugsink/bugsink/pull/266https://github.com/bugsink/bugsink/security/advisories/GHSA-fc2v-vcwj-269vhttps://github.com/google/brotli/commit/67d78bc41db1a0d03f2e763497748f2f69946627https://github.com/google/brotli/issues/1327https://github.com/google/brotli/issues/1375https://github.com/google/brotli/pull/1234https://github.com/google/brotli/releases/tag/v1.2.0