Ruby SAML vulnerable to SAML authentication bypass due to namespace handling (parser differential)
Summary
Ruby SAML vulnerable to SAML authentication bypass due to namespace handling (parser differential)
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-25292 ruby-saml Fixed in: 1.11.0-1+deb11u2
References
- advisory github.blog
- advisory github.com
- advisory github.com
- advisory portswigger.net
- advisory security.netapp.com
- advisory securitylab.github.com
- patch about.gitlab.com
- patch github.com
- patch github.com
- report news.ycombinator.com
- web github.com
- web github.com
- web nvd.nist.gov
- web lists.debian.org