{"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"],"vendor":"paperclipai","product":"paperclip","affected":["paperclip < 0.3.1"],"published":"2026-08-21","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:10:00.173","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","cve.org","exploit-available"],"epss":0.00486,"epssPercentile":0.41631,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-08-21T15:50:42.499767Z"},"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":"abyssal","depthScore":65,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":214671,"id":"CVE-2026-77087","ts":1790884808523,"field":"exploit_available","old":"false","new":"true"}]}