P4Verified

CVE-2026-50055: Zimbra Collaboration Suite 0 to before 10.1.20

CVE-2026-50055. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA).

Affected technology

Zimbra Collaboration Suite · 0 to before 10.1.20
Zimbra

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated user can bypass disabled mail forwarding by using a Sieve notify action to send copies of email content and headers to an arbitrary address. Vendor/CNA’s CVSS 3.1 assessment (base score 6.5/10) rates confidentiality impact as high; integrity and availability impact as none.

Published 2026-10-08 17:35:01.615298+00:00

CWE: CWE-863
CCR priority: 26.0 /100 (P4)
CVSS 3.1: 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · Vendor/CNA
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-50055.html