CVE-2026-25856

Description

OpenBullet2 through version 0.3.2 contains an authenticated remote code execution vulnerability that allows authenticated users to execute arbitrary C# code on the server host by creating or modifying job configurations. Attackers can leverage the plain C# execution mode, which lacks reference filtering or API restrictions, to access the file system, spawn processes, and invoke arbitrary .NET APIs as the process user.

CVSS Vector

References

• https://hackernoon.com/one-empty-header-to-admin-how-an-auth-bypass-breaks-openbullet2
• https://www.vulncheck.com/advisories/openbullet2-authenticated-rce-via-job-configuration-interface