CVE-2026-54714

Published: Jul 10, 2026Modified: Jul 13, 2026Deferred

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-79

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (4)

https://github.com/logto-io/logto/commit/209fa0a5cbe8522f9cf31873239dc6424099bb5e

Source: security-advisories@github.com

https://github.com/logto-io/logto/pull/9008

Source: security-advisories@github.com

https://github.com/logto-io/logto/releases/tag/v1.41.0

Source: security-advisories@github.com

https://github.com/logto-io/logto/security/advisories/GHSA-cpm5-w86q-w85f

Source: security-advisories@github.com

Timeline

No history available yet.