CVE-2025-54572 Information
Jul 31, 2025
cve
Description
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.
Reference
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
Related CNNVD
CNNVD-202507-3778 (Published: 2025-07-30)
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