Authlib up to 1.6.11/1.7.0 redirect

Summaryinfo

A vulnerability was found in Authlib up to 1.6.11/1.7.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality. The manipulation results in redirect. This vulnerability was named CVE-2026-44681. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Authlib up to 1.6.11/1.7.0. Affected is some unknown processing. The manipulation with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. This is going to have an impact on integrity. CVE summarizes:

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 attacker-chosen URL by submitting an authorization request that omits the openid scope. This vulnerability is fixed in 1.6.12 and 1.7.1.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-44681 since 05/07/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1204.001 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 317987 (Linux Distros Unpatched Vulnerability : CVE-2026-44681), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.6.12 or 1.7.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (317987) and EUVD (EUVD-2026-32637). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Authlib

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.6.0
• 1.6.1
• 1.6.2
• 1.6.3
• 1.6.4
• 1.6.5
• 1.6.6
• 1.6.7
• 1.6.8
• 1.6.9
• 1.6.10
• 1.6.11
• 1.7.0

Website

• Product: https://github.com/authlib/authlib/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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