---
id: CVE-2026-91081
title: >-
  Docs through 5.6.1 contains a server-side request forgery vulnerability in the
  cors-proxy endpoint that allows anonymous attackers to make outbound requests
  by providing a public document UUID
summary: >-
  Docs through 5.6.1 contains a server-side request forgery vulnerability in the
  cors-proxy endpoint that allows anonymous attackers to make outbound requests
  by providing a public document UUID. Attackers can exploit DNS
  time-of-check-tim…
severity: medium
cvss: 5.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N'
cwe:
  - CWE-918
vendor: suitenumerique
product: docs
affected:
  - docs <= 5.6.1
published: '2026-09-14'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:17:47.693'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91081'
references:
  - url: 'https://github.com/suitenumerique/docs'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/api/viewsets.py
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/suitenumerique/docs/blob/v5.6.1/src/backend/core/models.py
    label: disclosure@vulncheck.com
  - url: 'https://github.com/suitenumerique/docs/issues/2545'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/docs-through-5.6.1-ssrf-via-unauthenticated-cors-proxy-endpoint
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00248
epssPercentile: 0.1649
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-20T00:13:42.673520Z'
ingestedAt: '2026-09-14T19:13:23.464Z'
---

## Overview

Docs through 5.6.1 contains a server-side request forgery vulnerability in the cors-proxy endpoint that allows anonymous attackers to make outbound requests by providing a public document UUID. Attackers can exploit DNS time-of-check-time-of-use race conditions and shared address space bypasses to access internal network resources and exfiltrate image content.

## Remediation

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