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TI-2026-49917 Aliases CVE-2026-71247GHSA-v65x-57rf-cpg3

Documenso - Assistant Recipient Can Forge Another Signer's Signature in Sequential-Signing Documents

Priority LOW 29CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

Documenso's sign-field-with-token.ts, used by the live document-signing UI, allows a recipient with the ASSISTANT role to fetch and complete fields belonging to any later-or-equal-order, not-yet-signed recipient in the same envelope, with no restriction on field type. A newer V2 signing path (sign-envelope-field.ts) explicitly blocks assistants from completing SIGNATURE fields, and the project's own test suite comments confirm this guard is absent from the V1 path used here.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00299 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
documensodocumensoall versions—No fix listedCNA
  • documenso Vendordocumenso Affected all versions Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-71247
  2. 2026-10-03 Alias added: GHSA-v65x-57rf-cpg3

References

Advisory 1

  • TI-2024-34947 PDF Document Spoofing in Documenso CVSS 4.0HIGH 8.2
  • TI-2026-58808 Documenso 2.17.0 PDF Route Ignores Document Visibility CVSS 4.0HIGH 7.1
  • TI-2026-56865 Documenso before 2.13.0 Unauthenticated File Upload via /api/files/upload-pdf CVSS 4.0HIGH 8.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences