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Uncontrolled Resource Consumption

CVE-2025-54572

Medium
6.9/10

Summary

The Ruby SAML library is for implementing the client side of a SAML authorization. In versions prior to 1.18.1, a Denial-of-Service vulnerability exist in ruby-saml even with the `message_max_bytesize` setting configured. The vulnerability occurs because the SAML response is validated in `Base64` format prior to checking the message size, leading to potential resource exhaustion.

  • LOW
  • NETWORK
  • NONE
  • NONE

CWE-400 - Uncontrolled resource consumption

An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application's functionality as well as that of the host operating system.

References

Advisory Timeline

  • Published