CVE-2026-105687 Penpot: A team admin (non-owner) can remove the team owner via ::delete-team-member — missing owner-protection

Medium 4.9 Published Updated

A team admin can remove the team owner, locking them out of projects and files, due to missing authorization checks in the delete-member function.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-105687?

CVE-2026-105687 is a medium-severity missing authorization vulnerability in penpot, published on 5 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the delete-team-member RPC allows a team administrator to remove any member other than themselves but does not protect the team owner. A non-owner administrator can delete the owner's team-profile-rel membership and lock the owner out of the team and its projects, files, fonts, and media. This issue is fixed in version 2.18.0.

Weakness: CWE-863, CWE-269

Which versions are affected by CVE-2026-105687?

How do I fix CVE-2026-105687?

No fix has been published for CVE-2026-105687 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-2026-105687 being exploited?

There is no known exploitation of CVE-2026-105687 in the wild and no public exploit code.

Sources

Also known as GHSA-j83r-hph3-xpxc.

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