CVE-2026-105695 — Penpot: Missing authorization in chunked-upload assembly lets another authenticated user consume a victim's upload session
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 sc…
Published: 2026-10-05 · CVSS: 5.9 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7