{"id":"CVE-2026-82263","title":"Logto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter","summary":"Logto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter. Tenant administrators with Management API credentials can supply arbit…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","cwe":["CWE-918"],"published":"2026-08-28","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:23:49.880","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82263","references":[{"url":"https://github.com/logto-io/logto","label":"disclosure@vulncheck.com"},{"url":"https://github.com/logto-io/logto/blob/v1.42.0/packages/core/src/sso/OidcConnector/utils.ts","label":"disclosure@vulncheck.com"},{"url":"https://github.com/logto-io/logto/commit/16f4b2e732d5114ac98646c9370ec6ab61d6ed26","label":"disclosure@vulncheck.com"},{"url":"https://github.com/logto-io/logto/issues/9465","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/logto-server-side-request-forgery-via-oidc-sso-connector-issuer-url","label":"disclosure@vulncheck.com"},{"url":"https://github.com/logto-io/logto/issues/9465","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00264,"epssPercentile":0.18571,"ingestedAt":"2026-09-08T21:11:12.287Z","slug":"CVE-2026-82263","body":"## Overview\n\nLogto through 1.42.0 contains a server-side request forgery vulnerability in the OIDC SSO connector creation endpoint that fails to validate the issuer URL parameter. Tenant administrators with Management API credentials can supply arbitrary internal URLs to trigger HTTP GET requests to private network services, with response content returned in API responses.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}