FKIE_CVE-2026-54714

Vulnerability from fkie_nvd - Published: 2026-07-10 20:16 - Updated: 2026-07-10 20:16
Severity
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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-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.
References
security-advisories@github.comhttps://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e
security-advisories@github.comhttps://github.com/logto-io/logto/pull/9008
security-advisories@github.comhttps://github.com/logto-io/logto/releases/tag/v1.41.0
security-advisories@github.comhttps://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "logto",
          "vendor": "logto-io",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.41.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-54714",
  "lastModified": "2026-07-10T20:16:46.173",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-07-10T20:16:46.173",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/logto-io/logto/pull/9008"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/logto-io/logto/releases/tag/v1.41.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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