CVE-2025-54572

The Ruby SAML library is for implementing the client side of a SAML authorization. In versions 1.18.0 and below, a denial-of-service vulnerability exists in ruby-saml even with the message_max_bytesize setting configured. The vulnerability occurs because the SAML response is validated for Base64 format prior to checking the message size, leading to potential resource exhaustion. This is fixed in version 1.18.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/SAML-Toolkits/ruby-saml/commit/38ef5dd1ce17514e202431f569c4f5633e6c2709
https://github.com/SAML-Toolkits/ruby-saml/pull/770
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.1
https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-rrqh-93c8-j966

Configurations

No configuration.

History

31 Jul 2025, 18:42

Type	Values Removed	Values Added
Summary		(es) La librería Ruby SAML permite implementar el lado cliente de una autorización SAML. En las versiones 1.18.0 y anteriores, existe una vulnerabilidad de denegación de servicio en ruby-saml, incluso con la opción message_max_bytesize configurada. Esta vulnerabilidad se produce porque la respuesta SAML se valida para el formato Base64 antes de verificar el tamaño del mensaje, lo que puede provocar un agotamiento de recursos. Esto se solucionó en la versión 1.18.1.

30 Jul 2025, 14:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-07-30 14:15

Updated : 2025-07-31 18:42

NVD link : CVE-2025-54572

Mitre link : CVE-2025-54572

CVE.ORG link : CVE-2025-54572

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-770

Allocation of Resources Without Limits or Throttling

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