Vulnerability in NetApp Storagegrid
CVE-2025-25291
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 fix the issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.210 (97.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.206 · newest: 0.210 · change: +0.004
Affected products
- NetApp Storagegrid
- Omniauth Saml
- Onelogin Ruby-Saml
- Saml-Toolkits Ruby-Saml — versions < 1.12.4, >= 1.13.0, < 1.18.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-4vc4-m8qh-g8jm (Vendor Advisory)
- github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv (Vendor Advisory)
- github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328… (Patch)
- github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8a… (Patch)
- about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released (Patch)
- github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-p… (Exploit, Third Party Advisory)
- github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 (Release Notes)
- github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 (Release Notes)
- portswigger.net/research/saml-roulette-the-hacker-always-wins (Exploit, Third Party Advisory)
- securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-saml (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-25291?
- CVE-2025-25291 is a critical-severity vulnerability in NetApp Storagegrid, classified under Improper Verification of Cryptographic Signature. CVSS score: 9.8/10. Published 2025-03-12.
- How severe is CVE-2025-25291?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-25291 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.