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Critical · 9.6 CVE-2026-77087 EUVD-2026-63991GHSA-gwmj-hf32-5v8v

Paperclip before 0.3.1 Remote Code Execution via DNS Rebinding

Published Aug 21, 2026 · Updated Oct 1, 2026 · Assigned by VulnCheck

Description

Paperclip before 0.3.1 in default local_trusted mode fails to validate Host headers, allowing attackers to execute arbitrary commands via DNS rebinding. An attacker can craft a malicious webpage that, when visited by a developer running Paperclip locally, uses DNS rebinding to make authenticated API requests and execute commands through the process adapter.

Affected products

VendorProductAffectedFixed
paperclipai paperclip < 0.3.1 0.3.1

References