{"id":"CVE-2026-54714","title":"Logto is the modern, open-source auth infrastructure for SaaS and AI apps","summary":"Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, @logto/core reflected the SAML RelayState, SAMLResponse, and actionUrl into a Logto-origin auto-submit HTML form in packages/core/src/saml-applic…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"published":"2026-07-10","updated":"2026-07-10","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54714","references":[{"url":"https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e","label":"security-advisories@github.com"},{"url":"https://github.com/logto-io/logto/pull/9008","label":"security-advisories@github.com"},{"url":"https://github.com/logto-io/logto/releases/tag/v1.41.0","label":"security-advisories@github.com"},{"url":"https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00338,"epssPercentile":0.2734,"ingestedAt":"2026-07-11T20:15:26.513Z","slug":"CVE-2026-54714","body":"## Overview\n\nLogto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, @logto/core reflected the SAML RelayState, SAMLResponse, and actionUrl into a Logto-origin auto-submit HTML form in packages/core/src/saml-application/SamlApplication/utils.ts without HTML-attribute escaping. A SAML application flow with a crafted RelayState from GET or POST /api/saml/:id/authn could inject script that runs on the Logto tenant origin after the user completes login. This issue is fixed in version 1.41.0.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}