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CVE-2026-114614

2.6 · LOW

Authlib is a Python library which builds OAuth and OpenID Connect servers.

Published Oct 22, 2026authlibCWE-601EPSS 0.27%

Overview

CVE-2026-114614 is a low-severity vulnerability affecting authlib authlib. It was published on October 22, 2026 and has a CVSS 3.1 base score of 2.6 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.6, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from authlib. Update authlib to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
authlibauthlib>= 0.13, < 1.8.0Affected

References

GitHubgithub.com/authlib/authlib/commit/95ad1f90acf0c7b9cf2a8f25e6eb3f1135b8dc70GitHubgithub.com/authlib/authlib/releases/tag/v1.8.0GitHubgithub.com/authlib/authlib/security/advisories/GHSA-jj7h-c3hg-m23xGitHubgithub.com/authlib/authlib/security/advisories/GHSA-jj7h-c3hg-m23x

How CyberStrike helps

Frequently asked questions

What is CVE-2026-114614?

CVE-2026-114614 is a low-severity vulnerability affecting authlib authlib. It was published on October 22, 2026 and has a CVSS 3.1 base score of 2.6 (LOW).

How severe is CVE-2026-114614?

This vulnerability has a CVSS 3.1 base score of 2.6, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-114614?

Check the references section for vendor advisories and patches from authlib. Update authlib to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-114614?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-114614 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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