Admidio: OIDC Token Introspection Endpoint Returns Active for All Tokens Without Validation

Summary The OIDC token introspection endpoint /modules/sso/index.php/oidc/introspect always returns "active": true for every request, regardless of whether a valid token is provided, whether the token is expired, revoked, or completely fabricated. The endpoint performs no authentication of the...

GHSA-3GX8-Q682-38MX OpenID Connect nonce generated but never validated — ID token replay attack

Summary The roadiz/openid package generates an OIDC nonce in OAuth2LinkGenerator::generate and includes it in the authorization request sent to the identity provider, but never stores it and never validates it on the callback. The OpenIdJwtConfigurationFactory validation chain does not include a...

OpenID Connect nonce generated but never validated — ID token replay attack

Summary The roadiz/openid package generates an OIDC nonce in OAuth2LinkGenerator::generate and includes it in the authorization request sent to the identity provider, but never stores it and never validates it on the callback. The OpenIdJwtConfigurationFactory validation chain does not include a...

PT-2026-36108

Name of the Vulnerable Software and Affected Versions Admidio versions prior to 5.0.9 Description An issue exists in the OpenID Connect OIDC implementation where the token introspection endpoint '/modules/sso/index.php/oidc/introspect' always returns a positive active status regardless of whether...

Note Mark: OIDC-registered users authenticated by submitting password "null"

Summary IsPasswordMatch in backend/db/models.go falls back to a hard-coded bcrypt"null" placeholder whenever a user has no stored password. OIDC-registered users are created with an empty password, so anyone who submits password: "null" to the internal login endpoint receives a valid session for...

GHSA-PXF8-6WQM-R6HH Note Mark: OIDC-registered users authenticated by submitting password "null"

Summary IsPasswordMatch in backend/db/models.go falls back to a hard-coded bcrypt"null" placeholder whenever a user has no stored password. OIDC-registered users are created with an empty password, so anyone who submits password: "null" to the internal login endpoint receives a valid session for...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication via the IsPasswordMatch function. An attacker can gain unauthorized access to accounts registered through OIDC by submitting the password "null" to the internal login endpoint, which results in a valid session...

[SECURITY] Fedora 44 Update: opkssh-0.13.0-8.fc44

OpenPubkey SSH is a tool which enables ssh to be used with OpenID Connect allowing SSH access to be managed via identities like aliceaexample.com ins tead of long-lived SSH keys...

[SECURITY] Fedora 44 Update: python-msal-1.36.0-1.fc44

The Microsoft Authentication Library for Python enables applications to integrate with the Microsoft identity platform. It allows you to sign in users or apps with Microsoft identities Azure AD, Microsoft Accounts and Azure AD B2C accounts and obtain tokens to call Microsoft APIs such as Microsof...

PYSEC-2026-25

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.11, there is no CSRF protection on the cache feature in authlib.integrations.starletteclient.OAuth. This vulnerability is fixed in 1.6.11...

DEBIAN-CVE-2026-41425

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.11, there is no CSRF protection on the cache feature in authlib.integrations.starletteclient.OAuth. This vulnerability is fixed in 1.6.11...

UBUNTU-CVE-2026-41425

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.11, there is no CSRF protection on the cache feature in authlib.integrations.starletteclient.OAuth. This vulnerability is fixed in 1.6.11...

CVE-2026-41200

STIG Manager is an API and web client for managing Security Technical Implementation Guides STIG assessments of Information Systems. Versions 1.5.10 through 1.6.7 have a reflected Cross-Site Scripting XSS vulnerability in the OIDC authentication error handling code in src/init.js and...

EUVD-2026-25158

STIG Manager is an API and web client for managing Security Technical Implementation Guides STIG assessments of Information Systems. Versions 1.5.10 through 1.6.7 have a reflected Cross-Site Scripting XSS vulnerability in the OIDC authentication error handling code in src/init.js and...

CVE-2026-41200

STIG Manager versions 1.5.10–1.6.7 contain a reflected XSS in OIDC error handling (src/init.js, public/reauth.html) where error and error_description are written to the DOM via innerHTML without escaping. An attacker who composes a malicious redirect URL can cause JavaScript to run in the victim’...

Improper Authentication

Overview Affected versions of this package are vulnerable to Improper Authentication due to the SkipClientIDCheck configuration in the OIDC authentication provider, which disables audience claim validation. An attacker can gain unauthorized access by presenting a token issued for a different...

[SECURITY] Fedora 42 Update: opkssh-0.13.0-8.fc42

OpenPubkey SSH is a tool which enables ssh to be used with OpenID Connect allowing SSH access to be managed via identities like aliceaexample.com ins tead of long-lived SSH keys...

Improper Validation Of OAuth State Tokens

github.com/mattermost/mattermost-server is vulnerable to improper validation of OAuth state tokens. The vulnerability is due to insufficient validation during the OpenID Connect OAuth flow, which allows an attacker to manipulate authentication data and take over a user account under specific...

[SECURITY] Fedora 43 Update: opkssh-0.13.0-8.fc43

OpenPubkey SSH is a tool which enables ssh to be used with OpenID Connect allowing SSH access to be managed via identities like aliceaexample.com ins tead of long-lived SSH keys...

CVE-2026-40945

Oxia is a metadata store and coordination system. Prior to 0.16.2, when OIDC authentication fails, the full bearer token is logged at DEBUG level in plaintext. If debug logging is enabled in production, JWT tokens are exposed in application logs and any connected log aggregation system. This...