CVE-2026-113652

ApostropheCMS uploadfs Azure backend leaks account-level SAS token into every public attachment URL (sas: true)

MEDIUM
5.6
CVSS Score
Published: October 20, 2026 at 04:26 PM UTC
Updated: October 21, 2026 at 04:17 PM UTC
2 products affected across 1 vendoruploadfsApostrophecms

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Severity
MEDIUM5.6
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

>= 1.25.0, < 1.28.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.6MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-200CWE-522

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