What is CVE-2026-92794?

CVE-2026-92794 is a high-severity vulnerability in Opensignlabs Opensign, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-09-16.

How severe is CVE-2026-92794?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Opensignlabs Opensign

CVE-2026-92794

OpenSign through 2.41.3 fails to validate caller identity in the getDocument cloud function when one-time-password verification is disabled. Attackers can supply a document identifier from guest signing links to retrieve complete document details including all signers' information, sender identity, and valid download tokens without authentication.

Vulnerability class: Broken Access Control

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

Opensignlabs Opensign

Weakness classification (CWE)

CWE-862 — Missing Authorization

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-2026-92794?: CVE-2026-92794 is a high-severity vulnerability in Opensignlabs Opensign, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-09-16.
How severe is CVE-2026-92794?: High severity. CVSS v3 base score is 7.5 out of 10.