{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55789", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-17T14:40:28.380Z", "datePublished": "2026-07-10T19:55:37.360Z", "dateUpdated": "2026-07-10T19:55:37.360Z"}, "containers": {"cna": {"title": "Logto: SAML IdP injects user-controlled profile attributes raw into signed assertions, allowing privilege escalation at relying Service Providers", "problemTypes": [{"descriptions": [{"cweId": "CWE-91", "lang": "en", "description": "CWE-91: XML Injection (aka Blind XPath Injection)", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1395", "lang": "en", "description": "CWE-1395: Dependency on Vulnerable Third-Party Component", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/logto-io/logto/security/advisories/GHSA-vfpw-vq44-4p63", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/logto-io/logto/security/advisories/GHSA-vfpw-vq44-4p63"}, {"name": "https://github.com/logto-io/logto/pull/9107", "tags": ["x_refsource_MISC"], "url": "https://github.com/logto-io/logto/pull/9107"}, {"name": "https://github.com/logto-io/logto/commit/9097054860f0d638d90778d3dcde2ba050b844b6", "tags": ["x_refsource_MISC"], "url": "https://github.com/logto-io/logto/commit/9097054860f0d638d90778d3dcde2ba050b844b6"}, {"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": "2026-07-10T19:55:37.360Z"}, "descriptions": [{"lang": "en", "value": "Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's self-hosted SAML application IdP built the signed SAML response and assertion by string-substituting user-controlled profile attributes such as name, email, and custom attribute-mapping values into element-text placeholders of a SAML XML template using samlify 2.10.0, which left those placeholders unescaped. An authenticated low-privilege user could place XML markup in a profile attribute so Logto signed a forged SAML attribute, such as an arbitrary role, allowing privilege escalation at relying Service Providers that authorize on SAML attributes. This issue is fixed in version 1.41.0."}], "source": {"advisory": "GHSA-vfpw-vq44-4p63", "discovery": "UNKNOWN"}}}}

{}

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{}