CVE-2026-114614

Published: Ott 22, 2026 Last Modified: Ott 22, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 2,6
Attack Vector: network
Attack Complexity: high
Privileges Required: low
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: none
Availability: none

Description

AI Translation Available

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.is_secure_transport() 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 is an external non-loopback system. An external party able to supply a URL to OIDC RP-Initiated Logout registration, authorization-server metadata validation, or another call site can bypass the TLS-required guard and cause cleartext redirection or acceptance of cleartext endpoints. The issue does not bypass redirect URI exact matching and does not by itself forge tokens or authenticate users. The vulnerable authlib.common.security.is_secure_transport() implementation in authlib/common/security.py misinterprets the userinfo component before OIDC RP-Initiated Logout dynamic client registration and other consumers enforce transport security. This issue is fixed in version 1.8.0.

601

URL Redirection to Untrusted Site ('Open Redirect')

Draft
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Other
Potential Impacts:
Bypass Protection Mechanism Gain Privileges Or Assume Identity Other
Applicable Platforms
Technologies: Web Based, Web Server
View CWE Details
693

Protection Mechanism Failure

Draft
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
Technologies: Not Technology-Specific, ICS/OT
View CWE Details
https://github.com/authlib/authlib/commit/95ad1f90acf0c7b9cf2a8f25e6eb3f1135b8d…
https://github.com/authlib/authlib/releases/tag/v1.8.0
https://github.com/authlib/authlib/security/advisories/GHSA-jj7h-c3hg-m23x