CVE-2026-40162: Bugsink affected by authenticated arbitrary file write in artifactbundle/assemble

April 10, 2026

An authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow.

A user with a valid authentication token could cause the application to write attacker-controlled content to a filesystem location writable by the Bugsink process.

This issue requires authentication and affects only version 2.1.0.

The issue is fixed in 2.1.1.

References

github.com/advisories/GHSA-8hw4-fhww-273g
github.com/bugsink/bugsink
github.com/bugsink/bugsink/releases/tag/2.1.1
github.com/bugsink/bugsink/security/advisories/GHSA-8hw4-fhww-273g
nvd.nist.gov/vuln/detail/CVE-2026-40162

Code Behaviors & Features

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