CVE-2025-25291

EUVD-2025-6415
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 94%
Affected Products (NVD)
VendorProductVersion
omniauthomniauth_saml
𝑥
< 1.10.6
omniauthomniauth_saml
2.0.0 ≤
𝑥
< 2.1.3
omniauthomniauth_saml
2.2.0 ≤
𝑥
< 2.2.3
oneloginruby-saml
𝑥
< 1.12.4
oneloginruby-saml
1.13.0 ≤
𝑥
< 1.18.0
netappstoragegrid
-
𝑥
= Vulnerable software versions