PT-2026-50884

Name of the Vulnerable Software and Affected Versions Apache APISIX versions 2.3 through 3.16.0 Description The openid-connect plugin under default configuration contains an issue where insufficient verification of data authenticity allows an attacker to spoof identity headers. This can lead to...

CVE-2026-44087: Insufficient Verification of Data Authenticity

Insufficient Verification of Data Authenticity vulnerability in Apache APISIX. The openid-connect plugin under default configuration has an attack surface that allows the attacker to spoof identity headers allowing the attacker to get unauthorized access the protected resources. This issue affect...

Incorrect Authorization

Overview github.com/zitadel/zitadel/internal/api/oidc is a package for identity infrastructure Affected versions of this package are vulnerable to Incorrect Authorization in the CodeExchange and RefreshToken processes. An attacker can gain unauthorized access to user accounts or maintain persiste...

ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)

Summary Zitadel's OAuth2 / OIDC CodeExchange and RefreshToken implementations omit a critical validation step to ensure that the requesting client matches the client that originally initiated the authorization flow. This violates RFC 6749 Section 4.1.3, which mandates that the authorization serve...

Improper Access Control

Keycloak is vulnerable to Improper Access Control. The vulnerability is due to insufficient audience restriction enforcement in the OpenID Connect token introspection endpoint, which allows an authenticated confidential client to access sensitive token claims intended for other resource servers...

CVE-2026-49757 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...

EEF-CVE-2026-49757 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching

Summary Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined...

CVE-2026-49757 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...

CVE-2026-49757 OAuth2/OIDC account takeover in AshAuthentication via email-based user matching

Authentication Bypass by Spoofing vulnerability in team-alembic AshAuthentication allows account takeover of local users via OAuth2/OIDC sign-in. AshAuthentication's OAuth2 and OIDC family strategies matched the local user by email address an upsert on the email field, or a user-defined sign-in...

CVE-2026-42604

Actual is a local-first personal finance tool. The POST /openid/config endpoint in Actual Budget's sync-server versions = 26.4.0 exposes the full OpenID Connect configuration—including the OAuth2 clientsecret—to any caller who knows the bootstrap password. The endpoint also lacks authentication a...

Incorrect Authorization

Overview @actual-app/sync-server is an actual syncing server Affected versions of this package are vulnerable to Incorrect Authorization through the /openid/config endpoint, which exposes sensitive OpenID Connect configuration data, including the OAuth2 clientsecret, to any caller who knows the...

EUVD-2026-36543

Actual is a local-first personal finance tool. The POST /openid/config endpoint in Actual Budget's sync-server versions = 26.4.0 exposes the full OpenID Connect configuration—including the OAuth2 clientsecret—to any caller who knows the bootstrap password. The endpoint also lacks authentication a...

CVE-2026-42604

The CVE concerns Actual Budget’s sync-server (local-first Personal Finance tool). Versions ≤ 26.4.0 expose the full OpenID Connect configuration, including the OAuth2 client_secret, via POST /openid/config to callers who know the bootstrap password. The endpoint lacks authentication and rate limi...

CVE-2026-42604 Actual has an OpenID `client_secret` Disclosure via Broken Authorization Guard in `/openid/config`

Actual is a local-first personal finance tool. The POST /openid/config endpoint in Actual Budget's sync-server versions = 26.4.0 exposes the full OpenID Connect configuration—including the OAuth2 clientsecret—to any caller who knows the bootstrap password. The endpoint also lacks authentication a...

CVE-2026-42604 Actual has an OpenID `client_secret` Disclosure via Broken Authorization Guard in `/openid/config`

Actual is a local-first personal finance tool. The POST /openid/config endpoint in Actual Budget's sync-server versions = 26.4.0 exposes the full OpenID Connect configuration—including the OAuth2 clientsecret—to any caller who knows the bootstrap password. The endpoint also lacks authentication a...

CVE-2026-42604 Actual has an OpenID `client_secret` Disclosure via Broken Authorization Guard in `/openid/config`

Actual is a local-first personal finance tool. The POST /openid/config endpoint in Actual Budget's sync-server versions = 26.4.0 exposes the full OpenID Connect configuration—including the OAuth2 clientsecret—to any caller who knows the bootstrap password. The endpoint also lacks authentication a...

CVE-2026-48558

SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a...

EUVD-2026-36509

SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a...

CVE-2026-48558 SimpleHelp Authentication Bypass via Missing OIDC JWT Signature Verification

SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a...

CVE-2026-48558

Summary of vulnerability (CVE-2026-48558) : SimpleHelp versions 5.5.15 and earlier and 6.0 pre-release contain an authentication bypass in the OpenID Connect (OIDC) flow. When OIDC is configured, identity tokens are accepted without cryptographic signature verification, allowing a remote, unauthe...