Medium 5.6Published Oct 20, 2026

CVE-2026-113652ApostropheCMS uploadfs Azure backend leaks account-level SAS token into every public attachment URL (sas: true)

Updated under an hour ago (Oct 28, 2026, 9:30 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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: 5.6 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-200, CWE-522
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 20, 2026

Affected products

Affected products

apostrophecms apostrophe apostrophecms:apostrophe (from the name)	before 4.33.0	CNA record
apostrophecms uploadfs apostrophecms:uploadfs (from the name)	from 1.25.0, < 1.28.0	CNA record

References

References

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-hhph-8536-gfq5	x-refsource-confirm
https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce	x-refsource-misc
https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350	x-refsource-misc
https://github.com/apostrophecms/apostrophe/releases/tag/uploadfs@1.28.0	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.