CVE-2026-105686 Penpot: Repeated chunk index causes temporary-storage amplification

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the chunked media upload RPC validates that a chunk index is in range but neither rejects an already stored index nor replaces its previous object. An authenticated user can repeatedly upload the same valid index, causing...

CVE-2026-105686 Penpot: Repeated chunk index causes temporary-storage amplification

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the chunked media upload RPC validates that a chunk index is in range but neither rejects an already stored index nor replaces its previous object. An authenticated user can repeatedly upload the same valid index, causing...

CVE-2026-105686 Penpot: Repeated chunk index causes temporary-storage amplification

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the chunked media upload RPC validates that a chunk index is in range but neither rejects an already stored index nor replaces its previous object. An authenticated user can repeatedly upload the same valid index, causing...

CVE-2026-105686

The open-source design and prototyping platform Penpot is vulnerable to temporary-storage amplification in versions prior to 2.18.0 . The issue exists within the chunked media upload RPC , which fails to reject or replace previously stored chunk indexes. An authenticated user can repeatedly uploa...