CVE-2026-105688 Penpot: Team admin can escalate to owner via team invitation (missing owner-role guard on the invitation path)
A team administrator can escalate privileges to owner by inviting accounts with the owner role, bypassing role restrictions.
- 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-2026-105688?
CVE-2026-105688 is a medium-severity 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, create-team-invitations and the invitation acceptance path allow a non-owner team administrator to assign the owner role because invitation roles are persisted and applied without the role-ceiling check used by update-team-member-role. An administrator can invite another account as an owner, create multiple owners, and then use the new owner account to obtain owner-only control over the team. This issue is fixed in version 2.18.0.
Weakness: CWE-269
Which versions are affected by CVE-2026-105688?
How do I fix CVE-2026-105688?
No fix has been published for CVE-2026-105688 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-105688 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105688 exists.
Sources
Also known as GHSA-mx4v-cmxq-644v.