CVE-2026-77087
Paperclip before 0.3.1 Remote Code Execution via DNS Rebinding
- State
- Published
- Severity
- 9.4 Critical
- Published
- Aug 21, 2026
- Updated
- Oct 1, 2026
- Reserved
- Aug 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.4 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | VulnCheck |
| 3.1 | 9.6 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
paperclippaperclipai |
|
References
- GitHub Security Advisory (GHSA-x8hx-rhr2-9rf7)vendor-advisory
- VulnCheck Advisory: Paperclip before 0.3.1 Remote Code Execution via DNS Rebindingthird-party-advisory
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