PT-2026-45029

Name of the Vulnerable Software and Affected Versions authentik versions prior to 2025.12.5 authentik versions prior to 2026.2.3 authentik versions prior to 2026.5.1 Description The SAML Source ACS endpoint is susceptible to XML Signature Wrapping, a technique where a valid signature is used to...

GHSA-34R5-Q4JW-R36M samlify: XML Injection in AttributeValue Allows Privilege Escalation in Signed SAML Assertions

Summary samlify’s template substitution only escapes attribute contexts. Values inserted into element text e.g., are not escaped. A normal user can inject XML markup into an attribute value e.g., email, name and add new elements inside the signed assertion. The IdP then signs the tampered asserti...

SUSE-SU-2025:1500-1 Security update for opensaml

This update for opensaml fixes the following issues: - CVE-2025-31335: Fixed a bug where parameter manipulation allows the forging of signed SAML messages. bsc1239889...

DRUPAL-CONTRIB-2021-036

This module provides a solution to authenticate visitors using existing SAML providers. Certain non-default configurations allow a malicious user to login as any chosen user. The vulnerability is mitigated by the module's default settings which require the options "Either sign SAML assertions" an...

SAML SP 2.0 Single Sign On (SSO) - SAML Service Provider - Moderately critical - Multiple vulnerabilities - SA-CONTRIB-2021-036

This module provides a solution to authenticate visitors using existing SAML providers. Certain non-default configurations allow a malicious user to login as any chosen user. The vulnerability is mitigated by the module's default settings which require the options "Either sign SAML assertions" an...

CVE-2019-10201

It was found that Keycloak's SAML broker did not verify missing message signatures. If an attacker modifies the SAML Response and removes the sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to...

SAML Authentication Bypass

samlr is vulnerable to authentication bypass attacks. This is due to inconsistent validation of signed assertions which allows an attacker to manipulate SAML data without invalidating the cryptographic signature and bypass authentication to SAML service providers...

DEBIAN-CVE-2017-18122

A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid...