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

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

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Apr 2026
- **Updated:** 10 Apr 2026
- **Also known as:** GHSA-m63g-rhjw-f2v6

## 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 (Improper Limitation of a Pathname to a Restricted Directory)

## 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.

## Is CVE-2026-5998 being exploited?

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

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-5998 and fix it if it is affected.

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

Affected product: zhayujie chatgpt-on-wechat CowAgent. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-5998/ (Markdown: https://insights.sbomify.com/CVE-2026-5998/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-5998
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-5998
- OSV: https://osv.dev/vulnerability/CVE-2026-5998

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-5998/
Summaries are generated and may contain mistakes; the official description above is the record.