CVE-2026-105695 Missing authorization in penpot
An authenticated attacker can consume another user's upload session to steal uploaded data and delete the victim's pending session.
- 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-2026-105695?
CVE-2026-105695 is a medium-severity missing authorization vulnerability in penpot, published on 5 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Penpot is an open-source design and prototyping platform. Prior to 2.18.0, assemble-chunks retrieves an upload session using only its session ID, while upload-chunk correctly scopes the lookup to the authenticated profile. An authenticated user who obtains another user's live, completed upload-session UUID can assemble the victim's chunks into the attacker's own file, team font, or project import, disclosing the uploaded bytes and deleting the victim's pending session. This issue is fixed in version 2.18.0.
Weakness: CWE-862
Which versions are affected by CVE-2026-105695?
How do I fix CVE-2026-105695?
No fix has been published for CVE-2026-105695 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-2026-105695 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105695 exists.
Sources
Also known as GHSA-5vrm-3c6w-gjfv.