---
id: CVE-2026-113652
title: >-
  ApostropheCMS uploadfs Azure backend leaks account-level SAS token into every
  public attachment URL (sas: true)
summary: >-
  ApostropheCMS is an open-source Node.js content management system. From 1.25.0
  until 1.28.0, uploadfs Azure backend leaks account-level SAS token into every
  public attachment URL. When uploadfs is configured with the Azure backend and
  sa…
severity: medium
cvss: 5.6
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-200
  - CWE-522
vendor: apostrophecms
product: apostrophe
affected:
  - apostrophe < 4.33.0
  - 'uploadfs >= 1.25.0, < 1.28.0'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-21T14:24:35.042848Z'
published: '2026-10-20'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T15:53:38.704Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113652'
references:
  - url: >-
      https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hhph-8536-gfq5
    label: >-
      https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hhph-8536-gfq5
  - url: >-
      https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
    label: >-
      https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
  - url: >-
      https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
    label: >-
      https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
  - url: 'https://github.com/apostrophecms/apostrophe/releases/tag/uploadfs@1.28.0'
    label: 'https://github.com/apostrophecms/apostrophe/releases/tag/uploadfs@1.28.0'
  - url: 'https://github.com/advisories/GHSA-hhph-8536-gfq5'
tags:
  - cve.org
  - ghsa
  - npm
epss: 0.00277
epssPercentile: 0.20061
aliases:
  - GHSA-hhph-8536-gfq5
ecosystem: npm
patched:
  - uploadfs 1.28.0
ingestedAt: '2026-10-20T17:12:53.601Z'
---

## Overview

ApostropheCMS is an open-source Node.js content management system. From 1.25.0 until 1.28.0, uploadfs Azure backend leaks account-level SAS token into every public attachment URL. When uploadfs is configured with the Azure backend and sas: true, createContainer() builds the BlobServiceClient from a URL that embeds the full SAS query string, and Azure SDK v12 derived clients inherit that query string. This issue is fixed in version 1.28.0.

## Affected

- `apostrophe < 4.33.0`
- `uploadfs >= 1.25.0, < 1.28.0`

## Remediation

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

## Package advisory (CVE-2026-113652)

Affected packages:

- `uploadfs >= 1.25.0, < 1.28.0`

Patched in:

- `uploadfs 1.28.0`

Source: https://github.com/advisories/GHSA-hhph-8536-gfq5