Medium severity · published Oct 20, 2026
CVE-2026-113652
ApostropheCMS uploadfs Azure backend leaks account-level SAS token into every public attachment URL (sas: true)
5.6
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
apostrophe · apostrophecms
< 4.33.0 · source: vendor
UP
uploadfs · apostrophecms
>= 1.25.0, < 1.28.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-113652
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-113652
github.com
https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce
github.com
https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350
github.com
https://github.com/apostrophecms/apostrophe/releases/tag/uploadfs@1.28.0
github.com
https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hhph-8536-gfq5
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