CVE-2021-42086

HIGH 8.8CVE-2021-42086 · Published 07/10/2021 · updated 17/06/2026

In short

CVE-2021-42086 is a HIGH (CVSS 8.8) vulnerability affecting zammad (zammad).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.0% of all vulnerabilities.
Fix: update to 4.1.1 or later.

Package	Affected versions	Patched versions
zammad zammad	`< 4.1.1`	`4.1.1`

An issue was discovered in Zammad before 4.1.1. An Agent account can modify account data, and gain admin access, via a crafted request.

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Package

Affected versions

Patched versions

< 4.1.1

4.1.1

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