Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| logto-io / logto | affected < 1.41.0 |
CWE
CWE-91, CWE-1395
References
- https://github.com/logto-io/logto/security/advisories/GHSA-vfpw-vq44-4p63
- https://github.com/logto-io/logto/pull/9107
- https://github.com/logto-io/logto/commit/9097054860f0d638d90778d3dcde2ba050b844b6
- https://github.com/logto-io/logto/releases/tag/v1.41.0
ADP enrichment
No English description supplied.