CVE-2026-54714

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.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e
https://github.com/logto-io/logto/pull/9008
https://github.com/logto-io/logto/releases/tag/v1.41.0
https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f

Configurations

No configuration.

History

10 Jul 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-10 20:16

Updated : 2026-07-13 19:21

NVD link : CVE-2026-54714

Mitre link : CVE-2026-54714

CVE.ORG link : CVE-2026-54714

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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