BIT-gitlab-2025-25292
See a problem?- Import Source
- https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2025-25292.json
- JSON Data
- https://api.osv.dev/v1/vulns/BIT-gitlab-2025-25292
- Aliases
- Published
- 2025-04-14T11:55:19.936Z
- Modified
- 2025-11-06T13:25:46.476Z
- Summary
- Ruby SAML vulnerable to SAML authentication bypass due to namespace handling (parser differential)
- Details
-
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.
- Database specific
{ "cpes": [ "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*", "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*" ], "severity": "Critical" }- References
-
- https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released
- https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials
- https://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9
- https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0
- https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-754f-8gm6-c4r2
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv
- https://news.ycombinator.com/item?id=43374519
- https://nvd.nist.gov/vuln/detail/CVE-2025-25292
- https://portswigger.net/research/saml-roulette-the-hacker-always-wins
- https://security.netapp.com/advisory/ntap-20250314-0009/
- https://securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-saml
- https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html
Affected packages
Bitnami / gitlab
Package
- Name
- gitlab
- Purl
- pkg:bitnami/gitlab
Severity
- 9.3 (Critical) CVSS_V4 - 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 CVSS Calculator