CVE-2026-25856
OpenBullet2 0.3.2 Authenticated RCE via Job Configuration Interface
- State
- Published
- Severity
- 8.7 High
- Published
- Jun 8, 2026
- Updated
- Jul 14, 2026
- Reserved
- Feb 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-94 Improper Control of Generation of Code ('Code Injection')
Affected Products
| Product | Versions |
|---|---|
openbullet2openbullet |
|
References
- https://hackernoon.com/one-empty-header-to-admin-how-an-auth-bypass-breaks-openbullet2technical-descriptionexploit
- https://www.vulncheck.com/advisories/openbullet2-authenticated-rce-via-job-configuration-interfacethird-party-advisory
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