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CVE-2026-105238

7.3 · HIGH

A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1.

Published Oct 5, 2026CWE-918EPSS 0.41%

Overview

CVE-2026-105238 is a high-severity vulnerability. It was published on October 5, 2026 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

GitHubgithub.com/ChatGPTNextWeb/NextChat/GitHubgithub.com/ChatGPTNextWeb/NextChat/issues/6813GitHubgithub.com/ChatGPTNextWeb/NextChat/pull/6884Refvuldb.com/cve/CVE-2026-105238Refvuldb.com/submit/975707Refvuldb.com/vuln/413450Refvuldb.com/vuln/413450/cti

How CyberStrike helps

Frequently asked questions

What is CVE-2026-105238?

CVE-2026-105238 is a high-severity vulnerability. It was published on October 5, 2026 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-105238?

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-105238?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2026-105238?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-105238 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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