CVE-2026-40162
Bugsink affected by authenticated arbitrary file write in artifactbundle/assemble
7.1CVSSHIGH
Description
Bugsink is a self-hosted error tracking tool. In 2.1.0, 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 vulnerability is fixed in 2.1.1.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:HIntegrityHigh
A:LAvailabilityLow
Weaknesses
Affected Products
Attack Graph
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Exploitability
Workaround Available
MITRE ATT&CK
1 technique Initial Access
References
Timeline
Published
Apr 10, 2026
Last Updated
Apr 15, 2026
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