uby-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.
Configuration 1 (hide)
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03 Nov 2025, 20:17
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26 Sep 2025, 14:15
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| First Time |
Onelogin ruby-saml
Omniauth omniauth Saml Omniauth Onelogin |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| References |
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| References | () https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released - Patch | |
| References | () https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials - Exploit, Third Party Advisory | |
| References | () https://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349a - Patch | |
| References | () https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 - Patch | |
| References | () https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 - Release Notes | |
| References | () https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 - Release Notes | |
| References | () https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrq - Vendor Advisory | |
| References | () https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv - Vendor Advisory | |
| References | () https://security.netapp.com/advisory/ntap-20250314-0008/ - Third Party Advisory | |
| CPE | cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:* cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:* |
14 Mar 2025, 10:15
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12 Mar 2025, 22:15
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| New CVE |
Published : 2025-03-12 21:15
Updated : 2025-11-03 20:17
NVD link : CVE-2025-25293
Mitre link : CVE-2025-25293
CVE.ORG link : CVE-2025-25293
JSON object : View
Uncontrolled Resource Consumption