CVE-2026-82472: Documenso before 2.13.0 Unauthenticated File Upload via /api/files/upload-pdf

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-29 · updated 2026-09-24
Weakness: CWE-306

Description

Documenso before 2.13.0 accepts PDF file uploads on the /api/files/upload-pdf endpoint without requiring authentication, session tokens, or API credentials. Unauthenticated attackers can upload arbitrary PDF files indefinitely to exhaust storage resources or fill the database with unlinked document records.

Affected products

documenso: before 2.13.0 — fixed in 2.13.0

How to fix

Upgrade to a fixed version: documenso 2.13.0. Check the vendor advisory for mitigations.

References

https://github.com/documenso/documenso
https://github.com/documenso/documenso/blob/v2.12.0/apps/remix/server/api/files/files.ts
https://github.com/documenso/documenso/commit/4f346d3c2d5264f221e4d787e162f16051e44114
https://www.vulncheck.com/advisories/documenso-before-2.13.0-unauthenticated-file-upload-via-api-files-upload-pdf

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