CVE-2026-77087

CRITICAL 9.6

Paperclip before 0.3.1 Remote Code Execution via DNS Rebinding

CVSS Score

9.6

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	paperclipai
Product	paperclip
Published	Aug 21, 2026
Last Updated	Aug 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

paperclipai / paperclip

0 < 0.3.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/paperclipai/paperclip/security/advisories/GHSA-x8hx-rhr2-9rf7 vulncheck.com: https://www.vulncheck.com/advisories/paperclip-before-remote-code-execution-via-dns-rebinding

Credits

🔍 sagilayani