CVE-2025-25293

7.5 HIGH
Published: March 12, 2025 Modified: November 03, 2025

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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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4
Source: security-advisories@github.com
Release Notes
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0
Source: security-advisories@github.com
Release Notes
https://securitylab.github.com/advisories/GHSL-2024-355_ruby-saml
Source: security-advisories@github.com
Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20250314-0008/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

11 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
2.6%
85th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

omniauth onelogin