Linux Distros Unpatched Vulnerability : CVE-2026-49283

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive...

CVE-2026-49283 SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator...

CVE-2026-49283 SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator...

CVE-2026-49283

SimpleSAMLphp SAML2 (PHP library) is vulnerable to a TLS validator confusion in the HTTPArtifact::receive() flow. The embedded SAML Response receives a validator that delegates to the outer SOAP ArtifactResponse, but is validated against metadata selected from the embedded response issuer rather ...

EUVD-2026-62502

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identity provider. SOAPClient::addSSLValidator...

EUVD-2026-56187

When Velociraptor is configured to use an OIDC IdP for authentication, it uses the email claim as a username. However, some IdP allow users to change the email claim without verification. Some IdPs do not set the "emailverified" claim and do not actually verify the email. This allows a user to...

CVE-2026-18639

CVE-2026-18639 affects Velociraptor's OIDC authenticator. The vulnerability arises when Velociraptor uses the email claim as a username; some IdPs allow changing the email without verification, and some do not set or verify the email_verified claim. This can enable a user to impersonate another b...

CVE-2026-18639 Velociraptor OIDC Authenticator susceptible to email spoofing

When Velociraptor is configured to use an OIDC IdP for authentication, it uses the email claim as a username. However, some IdP allow users to change the email claim without verification. Some IdPs do not set the "emailverified" claim and do not actually verify the email. This allows a user to...

CVE-2026-57817

A flaw was found in Apache CXF. When operating in the OpenID Connect Hybrid Flow, Apache CXF does not enforce the validation of the chash parameter. This vulnerability allows a remote attacker, through a non-compliant or misconfigured Identity Provider IdP, to perform Authorization Code...

CVE-2025-11850 Improper Implicit Association via User Store Initialization in WSO2 Identity Server [Identity Confusion / External IDP Use]

When secondary user stores are configured, the implicit-association resolver incorrectly initializes from a secondary user store and bypasses the primary user store during search and uniqueness checks. This allows a subject to be associated with an unintended local account if the same lookup clai...

CVE-2026-18967

A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused asserti...

CVE-2026-58066

Rocket.Chat's SAML SSO before versions 8.7.0, 8.6.1, 8.5.2, 8.4.5, 8.3.7, 8.2.7, 8.1.7, 8.0.8, and 7.10.14 verified XML signatures but did not bind the validated signature to samlp:Response / saml:Assertion. An attacker could submit a wrapped document carrying forged identity attributes alongside...

n8n: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner

Impact n8n's Enterprise SSO instance-role provisioning maps a role claim asserted by the configured Identity Provider IdP to an n8n global role and applies it during authentication. The provisioning path did not prevent assignment of the global:owner role, unlike the token-exchange identity path,...

Linux Distros Unpatched Vulnerability : CVE-2026-49284

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. Prior to 2.4.7 and 2.5.2, SimpleSAMLphp's SAML SP ACS path does not enforc...

PT-2026-60204

Name of the Vulnerable Software and Affected Versions Vaultwarden versions prior to 1.36.0 Description The SSO login flow fails to verify the email verified claim from the Identity Provider IdP when the SSO SIGNUPS MATCH EMAIL variable is set to true during the linking of an IdP identity to an...

CVE-2026-56666 ZITADEL: Auto-linking by email: IdP-side email verification is not checked

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive...

CVE-2026-56664

ZITADEL’s external JWT Identity Provider validation (internal/idp/providers/jwt/session.go) did not enforce maximum token age (missing iat) in tokens, allowing arbitrarily old tokens from a trusted issuer to pass authentication. Affected: ZITADEL core platform; vulnerable code path in the JWT IdP...

CVE-2026-55669

ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validates a token's signature and issuer iss but not the audience aud claim, allowing a validly signed token from a trusted issuer for another relying party to be accepted ...

PT-2026-57292

Name of the Vulnerable Software and Affected Versions Logto versions prior to 1.41.0 Description The self-hosted SAML application IdP constructs signed SAML responses and assertions by substituting user-controlled profile attributes, such as name, email, and custom attribute-mapping values, into...

CVE-2026-14612

Two off-by-one errors in the FreeIPA ipa-otpd daemon's OAuth2 device authorization handler can cause out-of-bounds memory access when processing an oversized response from a configured external OAuth2/OIDC Identity Provider. An attacker who controls or can man-in-the-middle the IdP endpoint may b...