CVE-2026-92792
OpenNHP through 1.0.2 Authentication Bypass via Fallback Verifier
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 16, 2026
- Updated
- Sep 19, 2026
- Reserved
- Sep 16, 2026
Description
OpenNHP through 1.0.2 selects its trusted-execution attestation verifier based on attacker-supplied evidence containing a test_purpose key, causing the FallbackVerifier to execute unconditionally. Attackers can bypass attestation verification by including the test_purpose key in evidence and providing enrolled measure and serial number pairs from the allowlist to gain unauthorized access.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
opennhpOpenNHP |
|
References
- GitHub Issue #1732issue-tracking
- https://github.com/OpenNHP/opennhpproduct
- the fallback verifier always succeeds and is selected by an evidence keytechnical-description
- VulnCheck Advisory: OpenNHP through 1.0.2 Authentication Bypass via Fallback Verifierthird-party-advisory
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