https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2025-66568.htmlhttps://patchthecve.com/cve/CVE-2025-66568.htmlWed, 14 Oct 2026 21:10:00 +0000CRITICAL 9.1: The ruby-saml library implements the client side of an SAML authorization. Versions up to and including 1.12.4, are vulnerable to authentication bypass through the libxml2 canonicalization process used by Nokogiri for document transformation, which allows an attacker to execute a Signature Wrapping https://patchthecve.com/cve/CVE-2025-66567.htmlhttps://patchthecve.com/cve/CVE-2025-66567.htmlWed, 14 Oct 2026 21:10:00 +0000CRITICAL 9.1: The ruby-saml library is for implementing the client side of a SAML authorization. ruby-saml versions up to and including 1.12.4 contain an authentication bypass vulnerability due to an incomplete fix for CVE-2025-25292. ReXML and Nokogiri parse XML differently, generating entirely different documenhttps://patchthecve.com/cve/CVE-2025-25293.htmlhttps://patchthecve.com/cve/CVE-2025-25293.htmlWed, 17 Jun 2026 09:00:37 +0000HIGH 7.5: ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It https://patchthecve.com/cve/CVE-2025-25292.htmlhttps://patchthecve.com/cve/CVE-2025-25292.htmlWed, 17 Jun 2026 09:00:37 +0000CRITICAL 9.8: 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 diffhttps://patchthecve.com/cve/CVE-2025-25291.htmlhttps://patchthecve.com/cve/CVE-2025-25291.htmlWed, 17 Jun 2026 09:00:37 +0000CRITICAL 9.8: 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 diffhttps://patchthecve.com/cve/CVE-2024-45409.htmlhttps://patchthecve.com/cve/CVE-2024-45409.htmlWed, 17 Jun 2026 07:54:09 +0000CRITICAL 10.0: The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <= 1.16.0 does not properly verify the signature of the SAML Response. An unauthenticated attacker with access to any signed saml document (by the IdP) can thus forge a SAML Response/As