CVE-2025-25292 — Vulnerability in ruby-saml — CVE Details
Ruby SAML allows a SAML authentication bypass due to namespace handling (parser differential)
Summary
Advisory Timeline
- First published March 12, 2025 (579 days ago).
- Last revised February 4, 2026 — 328 days after initial publication.
Remediation
Upgrade to the fixed version using your package manager.
gem install ruby-saml -v 1.18.0
gem install ruby-saml -v 1.12.4
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (2)
Affects 1 ecosystem: rubygems (1).
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-347Improper Verification of Cryptographic SignatureMITRE
- CWE-436
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-754f-8gm6-c4r2WEB
- https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xvWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-25292ADVISORY
- https://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9WEB
- https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97WEB
- https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-releasedWEB
- https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentialsWEB
- https://github.com/SAML-Toolkits/ruby-samlPACKAGE
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4WEB
- https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0WEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/ruby-saml/CVE-2025-25292.ymlWEB
- https://lists.debian.org/debian-lts-announce/2025/04/msg00011.htmlWEB
- https://news.ycombinator.com/item?id=43374519WEB
- https://portswigger.net/research/saml-roulette-the-hacker-always-winsWEB
- https://security.netapp.com/advisory/ntap-20250314-0009WEB
- https://securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-samlADVISORY
Frequently Asked Questions
- What is CVE-2025-25292?
- Ruby SAML allows a SAML authentication bypass due to namespace handling (parser differential) This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
- How do I check if my project is affected by CVE-2025-25292?
- CVE-2025-25292 affects ruby-saml. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-25292 and 200,000+ other known vulnerabilities.
Severity & Exploitability
Exploitation is straightforward and causes maximum impact. Patch immediately.
Also Known As
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