Auth bypass in Opennhp
CVE-2026-92792
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.
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (technical-description)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92792?
- CVE-2026-92792 is a high-severity vulnerability in Opennhp, classified under Improper Authentication. CVSS score: 7.5/10. Published 2026-09-16.
- How severe is CVE-2026-92792?
- High severity. CVSS v3 base score is 7.5 out of 10.