VDB
CVE-2025-25292
CVE-2025-25292
PUBLISHED
CVSS 9.300000190734863 CRITICAL
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently, the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 contain a patch for the issue.
EPSS 65.09% · 99.2th percentile
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/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
65.09%
99.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitnami | gitlab | 0 |
| Bitnami | gitlab | 0 |
Timeline
- Mar 12, 2025 CVE Published
- Mar 13, 2025 EPSS Score
- Apr 9, 2025 EPSS Score
- Apr 23, 2025 EPSS Score
- May 20, 2025 EPSS Score
- Jun 3, 2025 EPSS Score
- Jun 30, 2025 EPSS Score
- Jul 14, 2025 EPSS Score
- Aug 2, 2025 EPSS Score
- Aug 10, 2025 EPSS Score
- Aug 24, 2025 EPSS Score
- Sep 13, 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/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9 url
- https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97 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-754f-8gm6-c4r2 url
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv url
- https://news.ycombinator.com/item?id=43374519 url
- https://nvd.nist.gov/vuln/detail/CVE-2025-25292 url
- https://portswigger.net/research/saml-roulette-the-hacker-always-wins url
- https://security.netapp.com/advisory/ntap-20250314-0009/ url
- https://securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-saml url
- https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html url