CVE-2025-64509: bugsink · Unthrottled Resource Allocation
Affects bugsinkSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.5 High : upgrade to 2.0.6 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 2.0.6
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 2.0.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| bugsink bugsink | Affected
| Fixed in
|
AI-suggested
Upgrade Bugsink to version 2.0.6 or later, where this vulnerability is patched. No additional mitigation is required once the official fix is applied.
Description
CVE-2025-64509 is a high-severity vulnerability in Bugsink, a self-hosted error tracking tool. Versions prior to 2.0.6 are affected by an issue where processing a specially crafted Brotli-compressed envelope can cause excessive CPU consumption during decompression, resulting in denial of service. The attack requires knowledge of the DSN, which is often exposed in common setups such as JavaScript and mobile applications. This vulnerability is distinct but related to another Brotli decompression issue in Bugsink (CVE-2025-64508). The issue is fixed in version 2.0.6.