OmniAuth-SAML authentication bypass via incorrect XML canonicalization and DOM traversal

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.024, the 84th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 5 Jul 2019. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-94hm-8q65-rmxm
• OSV: GHSA-94hm-8q65-rmxm
• nvd.nist.gov/vuln/detail/CVE-2017-11430
• duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations
• github.com/omniauth/omniauth-saml
• github.com/rubysec/ruby-advisory-db/blob/master/gems/omniauth-saml/CVE-2017-11430.yml
• www.kb.cert.org/vuls/id/475445

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.