CVE-2026-77087

CRITICAL CVSS 4.0: 9.4 EPSS 0.40%
Updated Aug 21, 2026
Paperclip
Parameter Value
CVSS 9.4 (CRITICAL)
Affected Versions before 0.3.1
Type CWE-862 (Missing Authorization)
Vendor Paperclip
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0