OpenBullet2 0.3.2 Authentication Bypass via X-Api-Key Header
Priority HIGH 75CWE-305Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02261 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| openbullet | openbullet2 | up to 0.3.2 | — | No fix listed | CNA |
- openbullet2 Vendoropenbullet Affected up to 0.3.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-25555
- 2026-10-03 Alias added: GHSA-54jj-4v6g-j34h
References
More openbullet vulnerabilities
- TI-2026-20900 OpenBullet2 0.3.2 Authenticated RCE via Job Configuration Interface CVSS 4.0HIGH 8.7
- TI-2026-20899 OpenBullet2 0.3.2 Authenticated RCE via FileProxySource Script Upload CVSS 4.0HIGH 8.7
- TI-2026-20666 OpenBullet2 0.3.2 Path Traversal via Wordlist Endpoint CVSS 4.0HIGH 8.7
- TI-2026-28781 OpenBullet2 0.3.2 NTLMv2 Hash Disclosure via UNC Path Proxy Source CVSS 4.0HIGH 7.1
Sources
- CVE-2026-25555 · CVE Program
- CVE-2026-25555 · NVD
- FIRST EPSS
- GHSA-54jj-4v6g-j34h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences