CVE-2026-25555
OpenBullet2 versions up to 0.3.2 contain an authentication bypass flaw in the API key middleware. By sending an empty X-Api-Key header, an unauthenticated attacker can trick the system into granting admin access, because the code compares the header to a default empty AdminApiKey string. This vulnerability is rated critical with a CVSS score of 9.3 (CWE-305).
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
OpenBullet2 through version 0.3.2
Real-world impact
Unauthenticated admin access to the application.
Why this severity
CVSS 9.3 critical due to network attack vector, low complexity, no privileges or user interaction required, and high impact on confidentiality and integrity.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Jun 8, 2026 · Jun 8, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 23, 2026 · 12d agoAdvisory updatedThe NVD record was last revised.