CVE-2025-64509 — Bugsink vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)

CVE-2025-64509

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

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
bugsink / bugsink	affected < 2.0.6

CWE

CWE-770

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.