CVE-2026-25555 (GCVE-0-2026-25555)
Vulnerability from cvelistv5 – Published: 2026-06-08 16:53 – Updated: 2026-07-14 15:53 X_Open Source
VLAI
EPSS
VEX
Title
OpenBullet2 0.3.2 Authentication Bypass via X-Api-Key Header
Summary
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.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-08 17:48 UTC
CWE
- CWE-305 - Authentication Bypass by Primary Weakness
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://hackernoon.com/one-empty-header-to-admin-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/openbullet2-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| openbullet | openbullet2 |
Affected:
0 , ≤ 0.3.2
(semver)
|
Date Public
2026-06-04 00:00
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