{"id":"CVE-2026-77087","title":"Paperclip before 0.3.1 in default local_trusted mode fails to validate Host headers, allowing attackers to execute arbitrary commands via DNS rebinding","summary":"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 …","severity":"critical","cvss":9.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-862"],"published":"2026-08-21","updated":"2026-09-24","sourceUpdated":"2026-09-24T20:06:30.133","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77087","references":[{"url":"https://github.com/paperclipai/paperclip/security/advisories/GHSA-x8hx-rhr2-9rf7","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/paperclip-before-remote-code-execution-via-dns-rebinding","label":"disclosure@vulncheck.com"},{"url":"https://github.com/paperclipai/paperclip/security/advisories/GHSA-x8hx-rhr2-9rf7","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00572,"epssPercentile":0.44883,"ingestedAt":"2026-09-24T20:51:40.215Z","slug":"CVE-2026-77087","body":"## Overview\n\nPaperclip 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}