# CVE-2026-105688: Penpot privilege escalation in team invitations

Source: https://junglewise.ai/threats/cve-2026-105688-penpot-is-an-open-source-design-and-prototyping-platform-prior  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-05. Updated: 2026-10-05  
License: CC BY 4.0 with a link back

CVE-2026-105688 · Severity: medium · CVSS 6.7 · Published 2026-10-05

Penpot is an open-source design and prototyping platform used by teams to collaborate on design projects. A non-owner team administrator can exploit a flaw in the team invitation system to assign the owner role to themselves or others, gaining exclusive control over the team and all its projects. An attacker with admin privileges can invite accounts as owners and leverage these new owners to take over the entire team.

Technologies: [Penpot](https://junglewise.ai/threats/technologies/penpot). Vendors: [Penpot](https://junglewise.ai/threats/vendors/penpot).

## Quick answers

**Is CVE-2026-105688 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-105688 being exploited in the wild.

**How severe is CVE-2026-105688?** Medium severity, with a CVSS score of 6.7, published 5 October 2026.

**Which products and versions are affected?** Penpot before 2.18.0.

**Is there a fix for CVE-2026-105688?** Yes: fixed in 2.18.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-105688 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-105688?** Check whether you run Penpot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2.18.0

## Technical details

The vulnerability exists in the create-team-invitations and invitation acceptance endpoints, which apply invited roles without enforcing the role-ceiling check that is used in update-team-member-role. This allows a non-owner administrator to bypass authorization controls and grant the owner role during invitation. The attack requires the attacker to already have administrator privileges on the team.

## Affected products

- Penpot Penpot before 2.18.0

## Timeline

- 2026-10-05: disclosed
- 2026-09-23: patched

## References

- [https://github.com/penpot/penpot/commit/5efd9cc3c5689485322f57b644b83a3bd2e33cee](https://github.com/penpot/penpot/commit/5efd9cc3c5689485322f57b644b83a3bd2e33cee)
- [https://github.com/penpot/penpot/releases/tag/2.18.0](https://github.com/penpot/penpot/releases/tag/2.18.0)

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