CVE-2026-25555: OpenBullet2 0.3.2 Authentication Bypass via X-Api-Key Header
openbullet · openbullet2
Affected: openbullet2 · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 83% of scored CVEs
DescriptionCVE.org
OpenBullet2 through version 0.3.2 contains an authentication bypass vulnerability in the API key authentication middleware that allows unauthenticated attackers to gain admin access by supplying an empty X-Api-Key header value. Attackers can exploit the middleware's comparison of the supplied header against an empty AdminApiKey default string to access the admin console and all API endpoints without valid credentials.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- openbullet · openbullet2up to and including 0.3.2
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- OpenBullet2 <= 0.3.2 - Authentication Bypass · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- openbullet
- Published
- June 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-25555 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.