How severe is CVE-2025-25293?

This vulnerability has a severity rating of HIGH with a CVSS score of N/A out of 10.

What type of vulnerability is CVE-2025-25293?

This is classified as CWE-400, which is a common weakness in software security.

CVE-2025-25293 - HIGH Severity | CVSS N/A

Vulnerability Description

ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue.

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