جزئیات آسیب‌پذیری

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.

• https://github.com/bugsink/bugsink/security/advisories/GHSA-fc2v-vcwj-269v x_refsource_CONFIRM
• https://github.com/google/brotli/issues/1327 x_refsource_MISC
• https://github.com/google/brotli/issues/1375 x_refsource_MISC
• https://github.com/bugsink/bugsink/pull/266 x_refsource_MISC
• https://github.com/google/brotli/pull/1234 x_refsource_MISC
• https://github.com/bugsink/bugsink/commit/3f65544aab3ad5303d97009136640de97b0676a5 x_refsource_MISC
• https://github.com/google/brotli/commit/67d78bc41db1a0d03f2e763497748f2f69946627 x_refsource_MISC
• https://github.com/google/brotli/releases/tag/v1.2.0 x_refsource_MISC