Critical severity9.6NVD Advisory· Published Aug 21, 2026· Updated Aug 21, 2026

CVE-2026-77087

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.

Affected products

Paperclip/Paperclipaillm-fuzzy
Range: <0.3.1

Patches

Vulnerability mechanics

References

github.com/paperclipai/paperclip/security/advisories/GHSA-x8hx-rhr2-9rf7nvd
www.vulncheck.com/advisories/paperclip-before-remote-code-execution-via-dns-rebindingnvd

News mentions

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cvss	0.624
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000