CVE-2025-64508: bugsink · Unthrottled Resource Allocation
Affects bugsinkSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.5 High : upgrade to 2.0.5 soon.
Data as of 12 Nov 2026, 20:15 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.5 |
|---|
- Patch
- Available – fixed in 2.0.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.
What to do
Upgrade bugsink to 2.0.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| bugsink bugsink | Affected
| Fixed in
|
AI-suggested
Upgrade Bugsink to version 2.0.5 or later, where this vulnerability is patched. No other mitigations are specified or required once the official fix is applied.
Description
Bugsink versions prior to 2.0.5 are vulnerable to a denial of service caused by resource exhaustion when processing specially crafted brotli compressed streams known as brotli "bombs." An attacker who knows the DSN can send these highly compressed streams that decompress to large memory allocations, exhausting server memory before decompression limits are applied. This vulnerability is fixed in version 2.0.5.
References
- github.com/bugsink/bugsink/security/advisories/GHSA-fc2v-vcwj-269v (opens in a new tab)
- github.com/google/brotli/issues/1327 (opens in a new tab)
- github.com/google/brotli/issues/1375 (opens in a new tab)
- github.com/bugsink/bugsink/pull/266 (opens in a new tab)
- github.com/google/brotli/pull/1234 (opens in a new tab)
- github.com/bugsink/bugsink/commit/3f65544aab3ad5303d97009136640de97b0676a5 (opens in a new tab)
- github.com/google/brotli/commit/67d78bc41db1a0d03f2e763497748f2f69946627 (opens in a new tab)
- github.com/google/brotli/releases/tag/v1.2.0 (opens in a new tab)