VMware Workspace ONE Access - Authentication Bypass

VMware Workspace ONE Access has two authentication bypass vulnerabilities CVE-2022-22955 & CVE-2022-22956 in the OAuth2 ACS framework. A malicious actor may bypass the authentication mechanism and execute any operation due to exposed endpoints in the authentication framework. id: CVE-2022-22956...

EUVD-2026-36714

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...

PT-2026-49202

Name of the Vulnerable Software and Affected Versions ash authentication versions 0.1.0 through 4.13.x ash authentication versions 5.0.0-rc.0 through 5.0.0-rc.9 Description An authentication bypass by spoofing allows account takeover of local users during OAuth2 or OIDC sign-in. The issue occurs...

CVE-2026-53523 Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 1.0.0 to before version 2.2.0, the getRedirectURL function in oauth2.go:22-29 constructs the OAuth2 callback URL by concatenating the request's Host header with a fixed path, with zero...

CVE-2026-50631

CVE-2026-50631 : A TOCTOU race condition in Apache CXF's AbstractOAuthDataProvider allows concurrent requests to reuse the same Refresh Token when recycleRefreshTokens is false, bypassing single-use semantics and generating multiple valid Access Tokens. This can enable token replay/abuse by multi...

CVE-2026-50630

The CVE-2026-50630 issue affects Apache CXF’s OAuth2 implementation, where the AuthorizationUtils class concatenates the realm parameter into the WWW-Authenticate header without sanitizing CR/LF characters. This can enable header injection or HTTP response splitting if an attacker controls the re...

CVE-2026-50628

CVE-2026-50628 concerns Apache CXF’s OAuthRequestFilter, where a logic error creates an inverted IP binding check: legitimate requests from the bound IP are rejected while requests from other IPs are allowed. Red Hat’s advisory attributes this to the OAuthRequestFilter component of CXF and notes ...

Exploit for CVE-2026-28699

CVE-2026-28699 — Gitea OAuth2 Scope Bypass via HTTP Basic Auth...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect via the OAuth2Client function. An attacker can redirect users to arbitrary external sites by crafting a malicious link and tricking them into clicking it. Remediation A fix was pushed into the master branch but not yet...

CVE-2026-11477 hs-web hsweb-framework OAuth2 Client OAuth2Client.java OAuth2Client redirect

A vulnerability was detected in hs-web hsweb-framework up to 5.0.1. This affects the function OAuth2Client of the file hsweb-authorization/hsweb-authorization-oauth2/src/main/java/org/hswebframework/web/oauth2/server/OAuth2Client.java of the component OAuth2 Client. The manipulation results in op...

CVE-2026-11477

The CVE-2026-11477 affects hs-web hsweb-framework up to 5.0.1, specifically the OAuth2Client in hsweb-authorization/hsweb-authorization-oauth2/src/main/java/org/hswebframework/web/oauth2/server/OAuth2Client.java. The issue enables an open redirect due to manipulation of this component, with remot...

PT-2026-47239

A vulnerability was detected in hs-web hsweb-framework up to 5.0.1. This affects the function OAuth2Client of the file hsweb-authorization/hsweb-authorization-oauth2/src/main/java/org/hswebframework/web/oauth2/server/OAuth2Client.java of the component OAuth2 Client. The manipulation results in op...

BIT-AUTHENTIK-2026-40166 authentik: Non-admin user can retrieve confidential OAuth client_secret via /api/v3/oauth2/access_tokens/

authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0 through 2026.2.2, authenticated non-admin users with at least one OAuth2 access token can retrieve the clientsecret of confidential OAuth2 providers they have previously authenticated against, exposing...

CVE-2026-44237

Summary: CVE-2026-44237 affects FreePBX before 17.0.8. The api module’s OAuth2 flow does not validate client credentials during token issuance; validateClient() in ClientRepository.php unconditionally returns true. This allows any party with a valid client_id to obtain OAuth2 access tokens withou...

CVE-2026-48153

Budibase: CVE-2026-48153 affects Budibase before 3.39.0. The OAuth2 SDK’s fetchToken makes a POST to a builder-supplied URL using plain node-fetch and bypasses the isBlacklisted outbound-fetch path check, and the OAuth2 URL Joi schema has no scheme/host restrictions. This enables SSRF to reach in...

EUVD-2026-32587

Budibase is an open-source low-code platform. Prior to 3.39.0, fetchToken in the OAuth2 SDK makes a POST to a builder-supplied URL with plain node-fetch, skipping the blacklist.isBlacklisted check that every other outbound fetch path in the codebase uses. The Joi schema for the OAuth2 URL has no...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the lack of inbound OAuth2/bearer-token authorization when the NEF module mounted the 3gpp-pfd-management API...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from the lack of inbound OAuth2/bearer-token authorization when the NEF module mounted the nnef-oam routing group...

PT-2026-44064

Name of the Vulnerable Software and Affected Versions Budibase versions prior to 3.39.0 Description The fetchToken function in the OAuth2 SDK performs a POST request to a URL provided by the builder using node-fetch. This process bypasses the isBlacklisted check used by all other outbound fetch...