{"id":"CVE-2026-56227","title":"Capgo - Server-Side Request Forgery via Webhook URL Validation","summary":"Capgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when tri…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-918"],"vendor":"Capgo","product":"Capgo","affected":["Capgo < 12.128.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-22T12:44:56.936882Z"},"exploitAvailable":true,"published":"2026-06-20","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:05:38.180Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56227","references":[{"url":"https://github.com/Cap-go/capgo/security/advisories/GHSA-48hc-53hv-6x3f","label":"GitHub Security Advisory (GHSA-48hc-53hv-6x3f)"},{"url":"https://www.vulncheck.com/advisories/capgo-server-side-request-forgery-via-webhook-url-validation","label":"VulnCheck Advisory: Capgo - Server-Side Request Forgery via Webhook URL Validation"}],"tags":["cve.org","exploit-available"],"epss":0.0026,"epssPercentile":0.1784,"ingestedAt":"2026-11-08T14:51:22.367Z","slug":"CVE-2026-56227","body":"## Overview\n\nCapgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when triggered, the backend performs outbound requests to these addresses with error responses disclosed to users.\n\n## Affected\n\n- `Capgo < 12.128.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}