Better Auth: OAuth refresh-token replay via missing client authentication on oidc-provider and mcp plugins

Am I affected? Users are affected if all of the following are true: - Their application uses better-auth and has enabled at least one of: oidcProvider imported from better-auth/plugins/oidc-provider, or mcp imported from better-auth/plugins/mcp. - Their application has at least one confidential...

Incorrect Authorization

Overview better-auth is a The most comprehensive authentication library for TypeScript. Affected versions of this package are vulnerable to Incorrect Authorization in the refreshtoken grant process of the legacy oidcProvider and mcp plugins, where confidential clients are not required to...

PT-2026-56301

Name of the Vulnerable Software and Affected Versions @better-auth/oauth-provider versions 1.6.0 through 1.6.10 better-auth versions 1.4.8-beta.7 through 1.5.x Description The @better-auth/oauth-provider POST /oauth2/token endpoint is susceptible to a race condition during the refresh token grant...

GHSA-4M3V-Q747-PC6H OpenClaw: Mattermost slash token revocation could lag until monitor refresh

Summary Mattermost slash token revocation could lag until monitor refresh. In affected versions, a caller with an old Mattermost slash token during the refresh window could continue accepting the old token until the monitor refreshed. This advisory is scoped to the named feature and configuration...

CVE-2026-1239

The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to unauthorized access of data due to a missing authorization check on the 'ninja-forms-views/token/refresh' REST callback in all versions up to, and including, 3.14.1. This makes it possible for...

CVE-2026-1239 Ninja Forms <= 3.14.1 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via token/refresh REST Endpoint

The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to unauthorized access of data due to a missing authorization check on the 'ninja-forms-views/token/refresh' REST callback in all versions up to, and including, 3.14.1. This makes it possible for...

CVE-2026-1239

The CVE-2026-1239 entry concerns the WordPress plugin Ninja Forms – The Contact Form Builder That Grows With You. A missing authorization check on the REST callback ninja-forms-views/token/refresh affects all versions up to and including 3.14.1, permitting unauthenticated attackers to view form s...

CVE-2026-56224

Capgo: vulnerability in console.capgo.app/login prior to version 12.128.2 allows access_token and refresh_token to be accepted in URL query parameters, leading to automatic user authentication without user confirmation. Practically, an attacker can craft a malicious link that lures a victim into ...

CVE-2026-56224 Capgo - Login CSRF and Session Fixation via URL Query Parameters

Capgo console.capgo.app/login before 12.128.2 accepts accesstoken and refreshtoken in URL query parameters, automatically authenticating users without confirmation. Attackers can craft malicious links to force victims into attacker-controlled sessions, exposing tokens in browser history and logs...

libaom: libaom: arbitrary address write via SVC layer context OOB and cyclic refresh map pointer hijack

An arbitrary address write vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC Scalable Video Coding layer ID control function allows an attacker to inject an arbitrary pointer into the cyclic refresh map field via crafted image pixel value...

CVE-2026-50740

A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.0.7 and earlier. A low‑privileged user could exploit the refresh parameter of the iFrame invocation tag to perform reflected XSS attacks...

CVE-2026-50740

A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.0.7 and earlier. A low‑privileged user could exploit the refresh parameter of the iFrame invocation tag to perform reflected XSS attacks...

EUVD-2026-39604

A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.0.7 and earlier. A low‑privileged user could exploit the refresh parameter of the iFrame invocation tag to perform reflected XSS attacks...

CVE-2026-50740

A missing sanitisation vulnerability of user input in the zone-include.php script exists in Revive Adserver 6.0.7 and earlier. A low‑privileged user could exploit the refresh parameter of the iFrame invocation tag to perform reflected XSS attacks...

GO-2026-5768 ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation) in github.com/zitadel/zitadel

ZITADEL: Missing clientid binding in OIDC authorization code exchange and refresh token flows RFC 6749 Section 4.1.3 violation in github.com/zitadel/zitadel...

GO-2026-5440 Algernon: Auto-refresh SSE event server sets Access-Control-Allow-Origin: * in github.com/xyproto/algernon

Algernon: Auto-refresh SSE event server sets Access-Control-Allow-Origin: in github.com/xyproto/algernon...

GO-2026-5388 Nhost Leaks Refresh Tokens via URL Query Parameter in OAuth Provider Callback in github.com/nhost/nhost

Nhost Leaks Refresh Tokens via URL Query Parameter in OAuth Provider Callback in github.com/nhost/nhost...

GO-2026-5300 Algernon: Auto-refresh SSE event server binds to all interfaces with Access-Control-Allow-Origin: * and no authentication in github.com/xyproto/algernon

Algernon: Auto-refresh SSE event server binds to all interfaces with Access-Control-Allow-Origin: and no authentication in github.com/xyproto/algernon...

GO-2026-5118 zrok: Reflected XSS in GitHub OAuth callback via unsanitized refreshInterval error rendering in github.com/openziti/zrok

zrok: Reflected XSS in GitHub OAuth callback via unsanitized refreshInterval error rendering in github.com/openziti/zrok...

org.keycloak.protocol.oidc.grants: org.keycloak.services.managers: Keycloak: Server-Side Request Forgery via OIDC token endpoint manipulation

A flaw was found in Keycloak. An authenticated attacker can perform Server-Side Request Forgery SSRF by manipulating the clientsessionhost parameter during refresh token requests. This occurs when a Keycloak client is configured to use the backchannel.logout.url with the application.session.host...