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CVE-2025-54572

Ruby SAML DOS vulnerability with large SAML response PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
SAML-Toolkits / ruby-samlaffected < 1.18.1

CWE

CWE-400, CWE-770

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.