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...

CVE-2026-57218

RabbitMQ AMQP 0-9-1 vulnerability (CVE-2026-57218) allows an existing consumer to continue receiving messages after OAuth token expiry or update_secret refresh, due to channel user state changes not triggering reauthorization at delivery time. Root cause: existing consumers are not canceled or re...

CVE-2026-56359 n8n - Cross-Site Scripting in Credential Management OAuth2 Authorization URL

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth...

Access Control Bypass

Overview Affected versions of this package are vulnerable to Access Control Bypass due to improper enforcement of the PKCE S256 challenge during the OAuth2 token exchange process. An attacker can obtain access tokens without providing the expected code verifier by bypassing the intended...

CVE-2026-28699

Gitea versions up to and including 1.26.1 allow OAuth2 access token scope enforcement to be bypassed through HTTP Basic authentication...

CVE-2026-26232

Gitea versions before 1.25.5 do not consistently enforce OAuth2 authorization code expiry and single-use behavior during token exchange...

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...

CVE-2026-48090

Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, the HTTP OAuth2 filter envoy.filters.http.oauth2 can leave an in-flight async token exchange attached to a downstream stream that has already been torn down. A late...

PT-2026-52886

Name of the Vulnerable Software and Affected Versions Envoy versions prior to 1.35.11 Envoy versions prior to 1.36.7 Envoy versions prior to 1.37.3 Envoy versions prior to 1.38.1 Description The OAuth2 HTTP filter uses AES-256-CBC in its encrypt and decrypt functions without an authentication tag...

PT-2026-51481

Mojolicious::Plugin::Web::Auth::OAuth2 versions through 0.17 for Perl have an insecure default state parameter. When no state generator is specified in the constructor, the module defaults to using a SHA-1 hash of predictable and low-entropy sources, including the epoch time which is leaked via t...

EUVD-2026-32587

Budibase: SSRF via OAuth2 token endpoint URL reaches internal hosts and cloud metadata...

PT-2026-50584

Name of the Vulnerable Software and Affected Versions Gitea versions prior to 1.26.2 Description Authenticated self routes under the /api/v1/user/... group do not properly enforce the public-only token restriction. This allows a token or OAuth grant marked as public-only to access or modify priva...

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...

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...

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...