CVE-2025-25292
CriticalRuby SAML allows a SAML authentication bypass due to namespace handling (parser differential)
Published Mar 12, 2025 · Updated Sep 8, 2026 · Also known as BIT-gitlab-2025-25292, DEBIAN-CVE-2025-25292, GHSA-754f-8gm6-c4r2, UBUNTU-CVE-2025-25292
Key Facts
Patch immediately- CVE-2025-25292 is a critical-severity vulnerability (CVSS 9.3 v4) affecting Storagegrid (Netapp), Omniauth Saml, Ruby-Saml (Onelogin) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 65% probability of exploitation in the next 30 days.
- Fixed versions are available, including gitlab 17.9.2, Omniauth Saml 1.10.6, Ruby-Saml 1.12.4.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v4
9.3
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 (30-day exploit likelihood)
65%
Higher than 99.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2025-25292 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Affected Products
17 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| StoragegridNetapp | See advisory | n/a |
| Omniauth SamlOmniauth | See advisory | 1.10.6 |
| Ruby-SamlOnelogin | >= 1.13.0, >= < 1.12.4 | 1.12.4 |
| gitlabbitnami | See advisory | 17.9.2 |
Patched Releases
gitlab
17.9.2
Omniauth Saml
1.10.6
Ruby-Saml
1.12.4, 1.11.0-1+deb11u2, 1.11.0-1ubuntu0.1+esm1, 1.13.0-1ubuntu0.1+esm1, 1.15.0-1ubuntu0.24.04.1+esm1, 1.18.0, 1.7.2-1ubuntu0.1~esm2
Timeline
Publicly disclosed
Mar 12, 2025
Last updated
Sep 8, 2026
Weakness Type
- CWE-347 Improper Verification of Cryptographic Signature
- CWE-436 Interpretation Conflict
References
- advisoryGHSA advisory
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25292.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2025-25292
- advisoryhttps://securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-saml
- advisoryhttps://security.netapp.com/advisory/ntap-20250314-0009/
FAQ
Common Questions.
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby.
Affected: Storagegrid (Netapp); Omniauth Saml; Ruby-Saml (Onelogin) versions >= 1.13.0, >= < 1.12.4, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including gitlab 17.9.2, Omniauth Saml 1.10.6, Ruby-Saml 1.12.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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