CVE-2026-25856 PUBLISHED

OpenBullet2 0.3.2 Authenticated RCE via Job Configuration Interface

Assigner: VulnCheck
Reserved: 06.02.2026 Published: 08.06.2026 Updated: 08.06.2026

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.

Metrics

CVSS Vector: 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
CVSS Score: 8.7

Product Status

Vendor openbullet
Product openbullet2
Versions Default: affected
  • affected from 0 to 0.3.2 (incl.)

Credits

  • Maksim Rogov finder
  • VulnCheck finder

References

Problem Types

  • Improper Control of Generation of Code ('Code Injection') CWE