PT-2025-46208 · Bugsink · Bugsink

Published 2025-11-10 · Updated 2025-11-13 · CVE-2025-64509

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Bugsink versions prior to 2.0.6

Description Bugsink is a self-hosted error tracking tool. A specially crafted Brotli-compressed envelope can cause Bugsink to expend excessive CPU time during decompression, resulting in a denial of service. This is possible if the Data Source Name (DSN) is known, which is common in many configurations like JavaScript and Mobile Apps. This issue is distinct from another Brotli-related problem in Bugsink.

Recommendations Update to Bugsink version 2.0.6 or later.

Exploit

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2025-64509

GHSA-RRX3-2X4G-MQ2H

Affected Products

Bugsink

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64509.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-64509 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-rrx3-2x4g-mq2h · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-64509 · Security Note
• https://github.com/bugsink/bugsink · Note
• https://github.com/bugsink/bugsink/commit/1201f754e39265d2aac58edf49dc380bac334388 · Note
• https://github.com/bugsink/bugsink/security/advisories/GHSA-rrx3-2x4g-mq2h · Note
• https://twitter.com/CVEnew/status/1988003177652756760 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1988145074564120776 · Twitter Post
• https://reddit.com/r/VulnMatter/comments/1ow3bmx/resumen_diario_de_vulnerabilidades_13112025 · Reddit Post