CVE-2021-21239

Technical Report on CVE-2021-21239: Redash SAML Authentication Vulnerability Introduction to SAML Security Assertion Markup Language SAML is an open standard for exchanging authentication and authorization data between parties in a federated identity system. It enables single sign-on SSO across...

CVE-2026-9090-poc

CVE-2026-9090 — Casdoor SAML Signature Bypass PoC Proof-of-concept for CVE-2026-9090 CWE-347, Improper Verification of Cryptographic Signature, an authentication bypass in the Casdoor identity platform. Attribution. CVE-2026-9090 was published and coordinated by CERT/CC — see VU780781. This...

CVE-2026-89042

passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses with arbitrary NameID and attributes to the assertion consum...

EUVD-2026-75631

passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses with arbitrary NameID and attributes to the assertion consum...

CVE-2026-89042: Improper Verification of Cryptographic Signature

passport-saml-encrypted through 0.1.13 makes SAML signature verification conditional on an optional cert option, allowing attackers to bypass authentication by submitting unsigned SAML responses. Attackers can post forged SAML responses with arbitrary NameID and attributes to the assertion consum...

GHSA-XQQH-3W52-Q8P7 Duplicate Advisory: Nokogiri does not check the return value from xmlC14NExecute

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-wx95-c6cv-8532. This link is maintained to preserve external references. Original Description Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method,...

CVE-2026-79772

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid...

CVE-2026-79772 Nokogiri before 1.19.1 Unchecked Return Value canonicalize

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid...

CVE-2026-79772

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid...

CVE-2026-79772

Nokogiri versions before 1.19.1 (a widely used Ruby XML library) contain an unchecked return value in the canonicalize method. The method calls xmlC14NExecute but fails to check its return value, returning an empty string on failure instead of raising an exception. This allows an attacker to bypa...

CVE-2026-79772 Nokogiri before 1.19.1 Unchecked Return Value canonicalize

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid...

Improper Authentication

Keycloak is vulnerable to Improper Authentication. The vulnerability is due to incorrect handling of SAML identity provider metadata that lacks key usage attributes, which allows an unauthenticated attacker to bypass SAML signature validation, forge a SAML response, and gain unauthorized access t...

CVE-2026-19842 SAML Single Sign On 4.8.85 - 5.4.6 - Unauthenticated Administrator Account Takeover via SAML Trust Anchor Overwrite

The SAML Single Sign On WordPress plugin before 5.4.7 does not verify the signature of a SAML response before storing the certificate it carries, and offers an administrator a one-click control that promotes that stored certificate to the site's trusted signing certificate, allowing unauthenticat...

PT-2026-68169

Name of the Vulnerable Software and Affected Versions Red Hat Build of Keycloak affected versions not specified Description A flaw exists in the SAML metadata import functionality of the keycloak-services component, which serves as the core engine for identity brokering. When identity provider...

Nokogiri does not check the return value from xmlC14NExecute

Summary Nokogiri's CRuby extension fails to check the return value from xmlC14NExecute in the method Nokogiri::XML::Documentcanonicalize and Nokogiri::XML::Nodecanonicalize. When canonicalization fails, an empty string is returned instead of raising an exception. This incorrect return value may...

MiracleLinux 7 : open-vm-tools-11.0.5-3.el7.9 (AXSA:2023-6579:12)

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2023-6579:12 advisory. open-vm-tools: SAML token signature bypass CVE-2023-34058 open-vm-tools: file descriptor hijack vulnerability in the vmware-user-suid-wrapper...