An authorization bypass in the EWS FindItem handler of Zimbra Collaboration Suite 10.1.0 through 10.1.19 allows an authenticated user with EWS enabled to read complete mailbox items, including raw MIME and attachments, from arbitrary local accounts without a share or delegation grant.
Metrics
Affected Vendors & Products
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Advisories
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories |
|
History
Thu, 08 Oct 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An authorization bypass in the EWS FindItem handler of Zimbra Collaboration Suite 10.1.0 through 10.1.19 allows an authenticated user with EWS enabled to read complete mailbox items, including raw MIME and attachments, from arbitrary local accounts without a share or delegation grant. | |
| Title | Zimbra Collaboration Suite EWS Extension Authorization Bypass via Crafted Composite Folder/Item Identifier | |
| Weaknesses | CWE-639 | |
| References |
| |
| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: rapid7
Published:
Updated: 2026-10-08T16:25:27.987Z
Reserved: 2026-06-02T14:57:14.369Z
Link: CVE-2026-10631
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses