Description

An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. An XML External Entity (XXE) vulnerability exists in the Zimbra Exchange Web Services (EWS) SOAP interface due to improper handling of XML input. An authenticated attacker can submit crafted XML data that is processed by an XML parser with external entity resolution enabled. Successful exploitation may allow disclosure of sensitive local files from the server.

INFO

Published Date :

2026-03-20T00:00:00.000Z

Last Modified :

2026-03-23T13:39:46.789Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33371 vulnerability.

Vendors Products
Zimbra
  • Collaboration
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33371.

URL Resource
https://wiki.zimbra.com/wiki/Security_Center cve-icon cve-icon
https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes cve-icon cve-icon
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy cve-icon cve-icon
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact