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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (48.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/OpenNHP/opennhp/issues/1732 (issue-tracking)
- github.com/OpenNHP/opennhp (product)
- github.com/OpenNHP/opennhp/blob/v1.0.2/nhp/core/verifier/verifier.go (technical-description)
- www.vulncheck.com/advisories/opennhp-through-1.0.2-authentication-bypass-via-fa… (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.