CVE-2026-25856
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductOpenbullet2
PublishedJun 8, 2026
First seenJun 8, 2026
Weakness typeCWE-94Code injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openbullet openbullet2 | v ≤ 0.3.2 | — |
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