VDB
CVE-2025-25293
CVE-2025-25293
PUBLISHED
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.
EPSS 6.22% · 91.1th percentile
Risk Scores
EPSS Score
6.22%
91.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | gitlab | 0 |
| Bitnami | gitlab | 0 |
Exploit Intelligence
- https://securitylab.github.com/advisories/GHSL-2024-355_ruby-saml (nist-nvd)
- https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials (nist-nvd)
- CIRCL seen: CVE-2025-25293 (circl-sighting)
- CIRCL seen: CVE-2025-25293 (circl-sighting)
- https://security.netapp.com/advisory/ntap-20250314-0008/ (circl)
- https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html (circl)
- https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 (circl)
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 (circl)
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 (circl)
- https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released (circl)
…and 12 more exploits
Timeline
- Mar 12, 2025 CVE Published
- Mar 13, 2025 EPSS Score
- Mar 14, 2025 PoC Published
- Mar 27, 2025 EPSS Score
- Apr 23, 2025 EPSS Score
- May 6, 2025 EPSS Score
- May 20, 2025 EPSS Score
- Jun 16, 2025 EPSS Score
- Jun 29, 2025 EPSS Score
- Jul 13, 2025 EPSS Score
- Jul 27, 2025 EPSS Score
- Aug 8, 2025 EPSS Score
References
- https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released url
- https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials url
- https://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349a url
- https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 url
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 url
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 url
- https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrq url
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv url
- https://nvd.nist.gov/vuln/detail/CVE-2025-25293 url
- https://security.netapp.com/advisory/ntap-20250314-0008/ url
- https://securitylab.github.com/advisories/GHSL-2024-355_ruby-saml url
- https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html url