CVE-2026-13229 Zammad 7.0.1 - Improper authorization in ticket article attachment cloning

High 7.1 Published Updated

Authenticated attackers can bypass authorization checks to clone ticket article attachments, potentially accessing or modifying unauthorized data.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-13229?

CVE-2026-13229 is a high-severity missing authorization vulnerability in Zammad, published on 4 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Zammad 7.1.0 contains an authenticated improper authorization vulnerability in the ticket article attachment cloning endpoint.

Weakness: CWE-862

Which versions are affected by CVE-2026-13229?

How do I fix CVE-2026-13229?

No fix has been published for CVE-2026-13229 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-13229 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13229 exists.

Sources

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