What is CVE-2025-64509?

CVE-2025-64509 is a high-severity vulnerability in Bugsink, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-11-10.

How severe is CVE-2025-64509?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Bugsink

CVE-2025-64509

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…

EPSS: 0.003 (19.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Bugsink — versions < 2.0.6

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-64509?: CVE-2025-64509 is a high-severity vulnerability in Bugsink, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2025-11-10.
How severe is CVE-2025-64509?: High severity. CVSS v3 base score is 7.5 out of 10.