CVE-2026-77087
CriticalCVSS 9.6Summary
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.
Risk Assessment
An attacker can take control of a local development environment and execute arbitrary commands, potentially leading to data theft or further attacks on infrastructure.
Recommendation
Update Paperclip to version 0.3.1 or later and ensure Host header validation is enabled.
Original NVD description (English source)
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.