keycloak-services: keycloak-services: Required signed-JWT assertion policy can be bypassed with unsigned assertion headers

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...

CVE-2026-14917: Authentication Bypass Using an Alternate Path or Channel

A SAML authentication bypass vulnerability affects the Kong SAML plugin when the validateassertionsignature option is explicitly set to false. This option is enabled by default. When disabled, the plugin may extract the SAML identity from an unsigned assertion and authenticate the user without...

Improper Authentication

Keycloak is vulnerable to Improper Authentication. The vulnerability is due to improper validation of client authentication assertions, which allows an attacker with valid client credentials to supply a fake unsigned assertion header and bypass policies requiring signed JWT authentication...

CVE-2026-18108

Net::SAML2 versions before 0.86 for Perl allow authentication bypass because verifyencryptedassertion accepts an EncryptedAssertion whose decrypted content carries no signature. verifyencryptedassertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via...

CVE-2026-18092 Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because new_from_xml reads assertion identity with document-wide XPath instead of the signed subtree

Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because newfromxml reads assertion identity with document-wide XPath instead of the signed subtree. newfromxml reads the NameID, attribute values, SessionIndex, audience and other identity fields...

CVE-2026-18092

Perl's Net::SAML2 versions before 0.86 are vulnerable to a SAML authentication bypass via XML signature wrapping . The root cause is that the new_from_xml function retrieves identity fields (such as NameID and attributes) using document-wide XPath queries instead of restricting the search to the ...

EUVD-2026-52291

Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because newfromxml reads assertion identity with document-wide XPath instead of the signed subtree. newfromxml reads the NameID, attribute values, SessionIndex, audience and other identity fields...

CVE-2026-18092

Net::SAML2 versions before 0.86 for Perl allow SAML authentication bypass via XML signature wrapping because newfromxml reads assertion identity with document-wide XPath instead of the signed subtree. newfromxml reads the NameID, attribute values, SessionIndex, audience and other identity fields...

EUVD-2026-52268

Net::SAML2 versions before 0.86 for Perl allow authentication bypass because verifyencryptedassertion accepts an EncryptedAssertion whose decrypted content carries no signature. verifyencryptedassertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via...

CVE-2026-18108

The Net::SAML2 Perl module (versions before 0.86 ) is vulnerable to an authentication bypass due to improper verification of cryptographic signatures. The root cause lies in the _verify_encrypted_assertion function, which returns a decrypted assertion as verified if it lacks a dsig:Signature elem...

CVE-2026-18108

Net::SAML2 versions before 0.86 for Perl allow authentication bypass because verifyencryptedassertion accepts an EncryptedAssertion whose decrypted content carries no signature. verifyencryptedassertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via...

CVE-2026-18108 Net::SAML2 versions before 0.86 for Perl allow authentication bypass because _verify_encrypted_assertion accepts an EncryptedAssertion whose decrypted content carries no signature

Net::SAML2 versions before 0.86 for Perl allow authentication bypass because verifyencryptedassertion accepts an EncryptedAssertion whose decrypted content carries no signature. verifyencryptedassertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via...

CVE-2026-18108 Net::SAML2 versions before 0.86 for Perl allow authentication bypass because _verify_encrypted_assertion accepts an EncryptedAssertion whose decrypted content carries no signature

Net::SAML2 versions before 0.86 for Perl allow authentication bypass because verifyencryptedassertion accepts an EncryptedAssertion whose decrypted content carries no signature. verifyencryptedassertion decrypts the EncryptedAssertion and returns it as verified when it carries no signature, via...

PT-2026-67395

Name of the Vulnerable Software and Affected Versions Net::SAML2 versions prior to 0.86 Description An authentication bypass exists because the verify encrypted assertion function accepts an EncryptedAssertion whose decrypted content lacks a signature. The function decrypts the EncryptedAssertion...

PT-2026-67394

Name of the Vulnerable Software and Affected Versions Net::SAML2 versions prior to 0.86 Description An authentication bypass exists due to XML signature wrapping. The new from xml function retrieves identity fields—including NameID, attribute values, SessionIndex, and audience—using document-wide...

Exploit for CVE-2026-60206

CVE-2026-60206 – Oracle WebLogic Server SAML Authentication By...

CVE-2026-16093

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...

CVE-2026-16093

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...

CVE-2026-16093

CVE-2026-16093 affects Keycloak’s Client Policies by allowing bypass of the requirement to use signed JWTs. A flaw lets an attacker with valid client credentials submit a fake, unsigned assertion header, making the system think policy requirements are met and enabling authentication with simpler ...

CVE-2026-16093 Keycloak-services: keycloak-services: required signed-jwt assertion policy can be bypassed with unsigned assertion headers

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned...