VDB
DEBIAN-CVE-2025-25291
DEBIAN-CVE-2025-25291
PUBLISHED
CVSS 9.800000190734863 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 fix the issue.
Risk Scores
CVSS v3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | ruby-saml | 1.11.0-1, 1.11.0-1+deb11u1, 0 |
| Debian:12 | ruby-saml | 0, 1.13.0-1, 1.17.0-1 |
Timeline
- Mar 12, 2025 CVE Published
- Apr 28, 2026 CVE Updated