Vulnerability record · CVE-2026-92794 · published 16 September 2026

CVE-2026-92794: Missing authorization vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.59% · top 53.8% CWE-862 · Missing authorization Deferred

8.7CVSS 4.0 base score

0.59%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

4References

22 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/OpenSignLabs/OpenSign
https://github.com/OpenSignLabs/OpenSign/blob/v2.41.0/apps/OpenSignServer/cloud/parsefunction/getDocument.js#L20-L32
https://github.com/OpenSignLabs/OpenSign/issues/2218
https://www.vulncheck.com/advisories/opensign-through-2.41.3-information-disclosure-via-getdocument

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Source: NIST National Vulnerability Database (record CVE-2026-92794), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.