CVE-2026-54588 Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction.

Poweradmin is a web-based DNS administration tool for PowerDNS server. Versions prior to 4.2.4 and 4.3.3 use the attacker-controlled HTTPHOST request header as the authoritative source for building callback URLs in its OIDC, SAML, and logout authentication flows without any validation. An...

CVE-2026-13007

Tenable Identity Exposure contains multiple unauthenticated API endpoints under /w/api/ that expose sensitive application configuration data including cleartext LDAP credentials, SAML configuration, user accounts, and directory settings to unauthenticated remote attackers. Affected responses are...

CVE-2026-13007 Insecure Public Caching on REST API Endpoints in Tenable Identity Exposure

Tenable Identity Exposure contains multiple unauthenticated API endpoints under /w/api/ that expose sensitive application configuration data including cleartext LDAP credentials, SAML configuration, user accounts, and directory settings to unauthenticated remote attackers. Affected responses are...

EUVD-2026-38487

Tenable Identity Exposure contains multiple unauthenticated API endpoints under /w/api/ that expose sensitive application configuration data including cleartext LDAP credentials, SAML configuration, user accounts, and directory settings to unauthenticated remote attackers. Affected responses are...

PT-2026-51549

Name of the Vulnerable Software and Affected Versions Tenable Identity Exposure affected versions not specified Description Multiple unauthenticated API endpoints under '/w/api/' expose sensitive application configuration data to remote attackers. The leaked information includes cleartext LDAP...

GHSA-FHRQ-3GMX-P879 OpenAM SAML2 Cluster Cookie-Hash-Redirect Path has Pre-authentication Reflected XSS via `FSUtils.postToTarget`

Summary Certain federation endpoints do not consistently apply output encoding when rendering user-supplied parameters into HTML responses. Under a non-default configuration used in some clustered deployments, this inconsistency can result in reflected XSS in the OpenAM origin without...

Exploit for Authentication Bypass by Spoofing in Zabbix

CVE-2022-23131 - Zabbix SAML SSO Authentication Bypass + RCE...

CVE-2026-12804

A flaw was found in lemonldap-ng. A remote attacker could exploit this vulnerability by manipulating the 'url' argument within the SAML Common Domain Cookie Endpoint. This manipulation results in an open redirect, potentially leading to users being redirected to arbitrary malicious websites...

CVE-2026-12804

Affected software: lemonldap-ng up to 2.23.0. Vulnerable component/file: lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm within the SAML Common Domain Cookie Endpoint. Root cause: manipulation of the argument url causes an open redirect. Impact: enables remote exploitation; attack vector is ne...

CVE-2026-12804 lemonldap-ng SAML Common Domain Cookie Endpoint CDC.pm redirect

A vulnerability was detected in lemonldap-ng up to 2.23.0. Impacted is an unknown function in the library lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm of the component SAML Common Domain Cookie Endpoint. Performing a manipulation of the argument url results in open redirect. The attack is...

CVE-2026-12804 lemonldap-ng SAML Common Domain Cookie Endpoint CDC.pm redirect

A vulnerability was detected in lemonldap-ng up to 2.23.0. Impacted is an unknown function in the library lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm of the component SAML Common Domain Cookie Endpoint. Performing a manipulation of the argument url results in open redirect. The attack is...

CVE-2026-12804

A vulnerability was detected in lemonldap-ng up to 2.23.0. Impacted is an unknown function in the library lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm of the component SAML Common Domain Cookie Endpoint. Performing a manipulation of the argument url results in open redirect. The attack is...

EUVD-2026-38190

A vulnerability was detected in lemonldap-ng up to 2.23.0. Impacted is an unknown function in the library lemonldap-ng-portal/lib/Lemonldap/NG/Portal/CDC.pm of the component SAML Common Domain Cookie Endpoint. Performing a manipulation of the argument url results in open redirect. The attack is...

Improper Verification of Cryptographic Signature

Overview CoreWCF.Primitives is a port of the service side of Windows Communication Foundation WCF to .NET Core. The goal of this project is to enable existing WCF services to move to .NET Core. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature vi...

GHSA-XJR9-GG9Q-JX3V CoreWCF: Authentication bypass in CoreWCF SAML 1.1 / 2.0 token signature validation

Impact Full impersonation of any principal the trusted STS could have issued an assertion for — including administrative principals when the relying party grants them via SAML claims. Affects both SAML 1.1 and SAML 2.0. Preconditions Relying-party service is hosted with WSFederationHttpBinding or...

GHSA-9JR3-RJ99-8JQ3 CoreWCF: SAML token replay protection is inoperative

Impact When enabling DetectReplayedTokens, a token can be replayed and will be detected despite it being reused. Patches Fixed in CoreWCF v1.8.1 and v1.9.1 Workarounds Provide your own implementation of ITokenReplayCache with the correct behavior...

CoreWCF: SAML token replay protection is inoperative

Impact When enabling DetectReplayedTokens, a token can be replayed and will be detected despite it being reused. Patches Fixed in CoreWCF v1.8.1 and v1.9.1 Workarounds Provide your own implementation of ITokenReplayCache with the correct behavior...

Insufficient Session Expiration

Overview CoreWCF.Primitives is a port of the service side of Windows Communication Foundation WCF to .NET Core. The goal of this project is to enable existing WCF services to move to .NET Core. Affected versions of this package are vulnerable to Insufficient Session Expiration due to the TryAdd...

CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate

Impact When a service is configured to validate SAML tokens using a method other than X.509 certificate signing, the final signature verification is skipped. Preconditions The service is configured to authenticate using SAML tokens and an out of band token resolver commonly the IssuerTokenResolve...

GHSA-RPJ7-HR7H-W6P9 CoreWCF: SamlSerializer skips SignatureValue verification when SAML signing token is not an X.509 certificate

Impact When a service is configured to validate SAML tokens using a method other than X.509 certificate signing, the final signature verification is skipped. Preconditions The service is configured to authenticate using SAML tokens and an out of band token resolver commonly the IssuerTokenResolve...