CVE-2026-77087

critical · 9.4

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.

9.4

CVSS

0.5%

EPSS (exploit prob.)

42nd

EPSS percentile

2026-08-21

Published

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-862

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-77087