Authenticated File Write Vulnerability in Bugsink Error Tracking Tool
CVE-2026-40162

7.1HIGH

Key Information:

Vendor

Bugsink

Status
Bugsink
Vendor
CVE Published:
10 April 2026

What is CVE-2026-40162?

Bugsink 2.1.0, a self-hosted error tracking tool, contains an authenticated file write vulnerability within its artifact bundle assembly flow. This security flaw allows an authenticated user, possessing a valid authentication token, to manipulate the application into writing malicious content to locations on the filesystem that are writable by the Bugsink process. This issue has been resolved in the subsequent release, Bugsink 2.1.1, which addresses the threat and enhances overall security.

Affected Version(s)

bugsink >= 2.1.0, < 2.1.1

References

https://github.com/bugsink/bugsink/security/advisories/GH...
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https://github.com/bugsink/bugsink/releases/tag/2.1.1
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CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.