---
id: CVE-2026-73573
title: >-
  In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability
  exists in the Zimbra Briefcase document editing functionality due to improper
  validation of the packages parameter
summary: >-
  In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability
  exists in the Zimbra Briefcase document editing functionality due to improper
  validation of the packages parameter. An authenticated attacker can exploit
  this v…
severity: low
cvss: 3.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-24
published: '2026-08-13'
updated: '2026-08-21'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73573'
references:
  - url: 'https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy'
    label: cve@mitre.org
  - url: 'https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00451
epssPercentile: 0.36645
ingestedAt: '2026-08-22T13:32:36.195Z'
---

## Overview

In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability exists in the Zimbra Briefcase document editing functionality due to improper validation of the packages parameter. An authenticated attacker can exploit this vulnerability by supplying a crafted path traversal sequence, potentially allowing unauthorized disclosure of sensitive files within the web application directory.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.