---
id: CVE-2026-92794
title: >-
  OpenSign through 2.41.3 fails to validate caller identity in the getDocument
  cloud function when one-time-password verification is disabled
summary: >-
  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
  documen…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-862
vendor: OpenSignLabs
product: OpenSign
affected:
  - OpenSign <= 2.41.3
published: '2026-09-16'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T20:43:58.793'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-92794'
references:
  - url: 'https://github.com/OpenSignLabs/OpenSign'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/OpenSignLabs/OpenSign/blob/v2.41.0/apps/OpenSignServer/cloud/parsefunction/getDocument.js#L20-L32
    label: disclosure@vulncheck.com
  - url: 'https://github.com/OpenSignLabs/OpenSign/issues/2218'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/opensign-through-2.41.3-information-disclosure-via-getdocument
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00593
epssPercentile: 0.46085
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-17T19:15:40.670500Z'
ingestedAt: '2026-09-16T21:05:36.886Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.