CVE-2026-11102-OAuth2-Implicit-Grant-Fragment-Hijacking

CVE-2026-11102 – OAuth2 Implicit Grant Fragment Hijacking Program Code Node.js + Exploit // oauthserver.js - OAuth2 provider issuing tokens in fragment const express = require'express'; const app = express; app.get'/authorize', req, res = const redirectUri = req.query.redirecturi; const state =...

Exploit for Use of Function with Inconsistent Implementations in Google Chrome

--- CVE-2026-11102 – OAuth2 Implicit Grant Fragment Hijackin...

DEBIAN-CVE-2026-44681

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an...

CVE-2026-44681

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.12 and 1.7.1, an unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an...

GHSA-R95X-QFJJ-FJJ2 Authlib OIDC Implicit/Hybrid Authorization Vulnerable to Open Redirect

Summary An unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. Details...

Authlib OIDC Implicit/Hybrid Authorization Vulnerable to Open Redirect

Summary An unauthenticated open redirect in Authlib's OpenIDImplicitGrant and OpenIDHybridGrant authorization endpoint lets a remote attacker cause the authorization server to issue an HTTP 302 to an attacker-chosen URL by submitting an authorization request that omits the openid scope. Details...

PT-2026-40589

Name of the Vulnerable Software and Affected Versions Authlib versions prior to 1.6.12 Authlib versions prior to 1.7.1 Description An unauthenticated open redirect exists in the authorization endpoint of the OpenIDImplicitGrant and OpenIDHybridGrant components. A remote attacker can cause the...

GHSA-4CRF-28C7-V4GR Openshift Console insufficient entropy vulnerability

An insufficient entropy vulnerability was found in the Openshift Console. In the authorization code type and implicit grant type, the OAuth2 protocol is vulnerable to a Cross-Site Request Forgery CSRF attack if the state parameter is used inefficiently. This flaw allows logging into the victim’s...

CVE-2024-6508: Insufficient Entropy

An insufficient entropy vulnerability was found in the Openshift Console. In the authorization code type and implicit grant type, the OAuth2 protocol is vulnerable to a Cross-Site Request Forgery CSRF attack if the state parameter is used inefficiently. This flaw allows logging into the victim’s...

PT-2024-37678

Name of the Vulnerable Software and Affected Versions Openshift Console affected versions not specified Description An insufficient entropy vulnerability was found in the Openshift Console, affecting the authorization code type and implicit grant type of the OAuth2 protocol. This vulnerability...

CVE-2024-42476

CVE-2024-42476 affects the Nim OAuth library prior to v0.11. The Authorization Code and Implicit flows rely on the state parameter to prevent CSRF, but when compiled with certain flags the state check can be bypassed. Version 0.11 fixes this by using a proper state validation (regular if or doAss...

CVE-2024-42476

In the OAuth library for nim prior to version 0.11, the Authorization Code grant and Implicit grant both rely on the "state" parameter to prevent cross-site request forgery CSRF attacks where a resource owner might have their session associated with protected resources belonging to an attacker...

CVE-2024-42476 oauth CSRF vulnerability

In the OAuth library for nim prior to version 0.11, the Authorization Code grant and Implicit grant both rely on the state parameter to prevent cross-site request forgery CSRF attacks where a resource owner might have their session associated with protected resources belonging to an attacker. Whe...

CVE-2024-42476 oauth CSRF vulnerability

In the OAuth library for nim prior to version 0.11, the Authorization Code grant and Implicit grant both rely on the state parameter to prevent cross-site request forgery CSRF attacks where a resource owner might have their session associated with protected resources belonging to an attacker. Whe...

CVE-2024-42476: Cross-Site Request Forgery (CSRF)

In the OAuth library for nim prior to version 0.11, the Authorization Code grant and Implicit grant both rely on the state parameter to prevent cross-site request forgery CSRF attacks where a resource owner might have their session associated with protected resources belonging to an attacker. Whe...

Doorkeeper gem has stored XSS on authorization consent view

Stored XSS on the OAuth Client's name will cause users being prompted for consent via the "implicit" grant type to execute the XSS payload. The XSS attack could gain access to the user's active session, resulting in account compromise. Any user is susceptible if they click the authorization link...

Top 5 OAuth 2 Implementation Vulnerabilities

Heya, back to my favourite topics namely OAuth . I have previously discussed about common OAuth 2 Implementation Vulnerabilities but now it is time maybe to list those and order them based on their criticality. 5 The Postman Always Rings Twice I have introduced this 'attack' in last year post...