XML Injection Affecting @logto/connector-saml package, versions <1.3.6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-LOGTOCONNECTORSAML-17954414
- published12 Jul 2026
- disclosed10 Jul 2026
- creditUnknown
Introduced: 10 Jul 2026
NewCVE-2026-55789 (opens in a new tab)How to fix?
Upgrade @logto/connector-saml to version 1.3.6 or higher.
Overview
@logto/connector-saml is a SAML standard connector implementation.
Affected versions of this package are vulnerable to XML Injection via the SAML assertion process. An attacker can inject arbitrary XML markup into signed SAML assertions by supplying crafted profile attributes, potentially escalating privileges at relying Service Providers that authorize users based on SAML attributes.