CVEvulnerability
CVE-2025-64508
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-11-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-770
Description
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.
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://github.com/bugsink/bugsink/commit/3f65544aab3ad5303d97009136640de97b0676a5 github.com
- https://github.com/bugsink/bugsink/pull/266 github.com
- https://github.com/bugsink/bugsink/security/advisories/GHSA-fc2v-vcwj-269v github.com
- https://github.com/google/brotli/commit/67d78bc41db1a0d03f2e763497748f2f69946627 github.com
- https://github.com/google/brotli/issues/1327 github.com
- https://github.com/google/brotli/issues/1375 github.com
- https://github.com/google/brotli/pull/1234 github.com
- https://github.com/google/brotli/releases/tag/v1.2.0 github.com