CVE-2026-5998 zhayujie chatgpt-on-wechat CowAgent API Memory Content Endpoint service.py dispatch path traversal

Medium 6.9 Published Updated

Remote attackers can exploit a path traversal flaw in the CowAgent API to read or modify arbitrary files on the server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-5998?

CVE-2026-5998 is a medium-severity path traversal vulnerability in zhayujie chatgpt-on-wechat CowAgent, published on 10 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw has been found in zhayujie chatgpt-on-wechat CowAgent up to 2.0.4. This affects the function dispatch of the file agent/memory/service.py of the component API Memory Content Endpoint. This manipulation of the argument filename causes path traversal. The attack can be initiated remotely. The exploit has been published and may be used. Upgrading to version 2.0.5 mitigates this issue. Patch name: 174ee0cafc9e8e9d97a23c305418251485b8aa89. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Weakness: CWE-22

Which versions are affected by CVE-2026-5998?

How do I fix CVE-2026-5998?

No fix has been published for CVE-2026-5998 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-5998 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-5998 exists.

Sources

Also known as GHSA-m63g-rhjw-f2v6.

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