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CVE-2026-3456-OAuth2-PKCE-Race-Condition-Account-Takeover-

8. CVE-2026-3456 – OAuth2 PKCE Race Condition Account Takeover Overview A race condition in the OAuth2 authorization server allows an attacker to reuse a victim’s authorization code before the legitimate client redeems it, by guessing or brute‑forcing the PKCE codeverifier within a small time...

CVE-2026-94127

CVE-2026-94127 — F5 BIG-IP APM Detection Tool Defensive Author: https://github.com/FurkanKAYAPINAR/ A defensive, non-exploit detector for CVE-2026-94127 , a heap-based buffer overflow CWE-122 in F5 BIG-IP APM that allows an unauthenticated remote attacker to achieve remote code execution RCE. CVS...

CVE-2026-22005-OAuth-2.0-Device-Code-Phishing-Short-Interval-

CVE-2026-22005 – OAuth 2.0 Device Code Phishing Short Interval Program Code Python devicecodeserver.py - Authorization server with too-fast polling import time, secrets codes = @app.route'/device/code' def devicecode: code = secrets.tokenurlsafe16 codescode = 'usercode': secrets.tokenhex4,...

CLSA-2026-1794393256 TuxCare security update for org.springframework.security:spring-security-oauth2-authorization-server (1 CVE)

TuxCare rebuilt org.springframework.security:spring-security-oauth2-authorization-server to address 1 CVE. Fixed in 1.1.4-tuxcare.7...

CLSA-2026-1794249972 TuxCare security update for org.springframework.security:spring-security-oauth2-authorization-server (1 CVE)

TuxCare rebuilt org.springframework.security:spring-security-oauth2-authorization-server to address 1 CVE. Fixed in 1.2.7-tuxcare.5...

PT-2026-137292

This module introduces an OAuth 2.0 authorization server, which can be configured to protect your Drupal instance with access tokens, or allow clients to request new access tokens and refresh them. The module doesn't sufficiently restrict access to consumer configuration. Users who can create or...

SUSE CVE-2026-114620

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, Authlib's RFC 9101 JWTAuthenticationRequest passes the unauthenticated, client-controlled requesturi parameter to the abstract getrequestobject hook before applying a destination or registration policy; the...

EUVD-2026-108522

Authlib: Unvalidated requesturi fetch in JWT-secured authorization request JAR leading to SSRF...

EUVD-2026-108513

Authlib: issecuretransport loopback exemption can be bypassed with a userinfo component, allowing cleartext-HTTP URLs to non-loopback hosts...

PT-2026-127758

Summary In affected versions, the SDK's server-side bearer authentication had no way to check that a token was issued for your server its audience. Where one authorization server issues tokens for several services, a valid token for another service was also accepted by your MCP server. Am I...

PYSEC-2026-4360

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, Authlib's RFC 9101 JWTAuthenticationRequest passes the unauthenticated, client-controlled requesturi parameter to the abstract getrequestobject hook before applying a destination or registration policy; the...

PYSEC-2026-4360

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, Authlib's RFC 9101 JWTAuthenticationRequest passes the unauthenticated, client-controlled requesturi parameter to the abstract getrequestobject hook before applying a destination or registration policy; the...

CVE-2026-114620

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, Authlib's RFC 9101 JWTAuthenticationRequest passes the unauthenticated, client-controlled requesturi parameter to the abstract getrequestobject hook before applying a destination or registration policy; the...

CVE-2026-114620

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.9.0, Authlib's RFC 9101 JWTAuthenticationRequest passes the unauthenticated, client-controlled requesturi parameter to the abstract getrequestobject hook before applying a destination or registration policy; the...

PYSEC-2026-4354

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.issecuretransport uses a textual prefix comparison for loopback HTTP exemptions, so a URL whose userinfo begins with a loopback host can be accepted even when its parsed host ...

CVE-2026-114614

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.issecuretransport uses a textual prefix comparison for loopback HTTP exemptions, so a URL whose userinfo begins with a loopback host can be accepted even when its parsed host ...

PYSEC-2026-4354

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.issecuretransport uses a textual prefix comparison for loopback HTTP exemptions, so a URL whose userinfo begins with a loopback host can be accepted even when its parsed host ...

CVE-2026-114614

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.issecuretransport uses a textual prefix comparison for loopback HTTP exemptions, so a URL whose userinfo begins with a loopback host can be accepted even when its parsed host ...

CVE-2026-114614 Authlib: is_secure_transport() loopback exemption can be bypassed with a userinfo component, allowing cleartext-HTTP URLs to non-loopback hosts

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.issecuretransport uses a textual prefix comparison for loopback HTTP exemptions, so a URL whose userinfo begins with a loopback host can be accepted even when its parsed host ...