CVE-2025-54572 (GCVE-0-2025-54572)

Vulnerability from cvelistv5 – Published: 2025-07-30 14:05 – Updated: 2025-11-03 18:13
VLAI?
Title
Ruby SAML DOS vulnerability with large SAML response
Summary
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.
Severity ?
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
SAML-Toolkits ruby-saml Affected: < 1.18.1
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