VDB
CVE-2025-25293
CVE-2025-25293
PUBLISHED
CVSS 7.699999809265137 HIGH
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 1.50% · 73.2th percentile
Risk Scores
CVSS 4.0
7.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score
1.50%
73.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | gitlab | 0 |
| Bitnami | gitlab | 0 |
Timeline
- Mar 12, 2025 CVE Published
- Mar 13, 2025 EPSS Score
- Mar 14, 2025 PoC Published
- Mar 27, 2025 EPSS Score
- Apr 24, 2025 EPSS Score
- May 8, 2025 EPSS Score
- May 22, 2025 EPSS Score
- Jun 5, 2025 EPSS Score
- Jul 4, 2025 EPSS Score
- Jul 18, 2025 EPSS Score
- Aug 1, 2025 EPSS Score
- Aug 2, 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/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://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349a fix
- https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 fix
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 fix
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 fix
- https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html advisory