{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54714","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-15T22:58:06.564Z","datePublished":"2026-07-10T19:54:28.526Z","dateUpdated":"2026-07-13T18:18:36.103Z"},"containers":{"cna":{"title":"Logto: XSS via unescaped RelayState in SAML auto-submit form","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f"},{"name":"https://github.com/logto-io/logto/pull/9008","tags":["x_refsource_MISC"],"url":"https://github.com/logto-io/logto/pull/9008"},{"name":"https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e","tags":["x_refsource_MISC"],"url":"https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e"},{"name":"https://github.com/logto-io/logto/releases/tag/v1.41.0","tags":["x_refsource_MISC"],"url":"https://github.com/logto-io/logto/releases/tag/v1.41.0"}],"affected":[{"vendor":"logto-io","product":"logto","versions":[{"version":"< 1.41.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-10T19:54:28.526Z"},"descriptions":[{"lang":"en","value":"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-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."}],"source":{"advisory":"GHSA-cpm5-w86q-w85f","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-13T18:18:29.074854Z","id":"CVE-2026-54714","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-13T18:18:36.103Z"}}]}}