# CVE-2026-2863: feng_ha_ha/megagao ssm-erp/production_ssm FileServiceImpl.java deleteFile path traversal

> Remote attackers can exploit a path traversal flaw in the deleteFile function to modify or delete arbitrary files in the SSM ERP application.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Feb 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-x835-c867-m9pw

## What is CVE-2026-2863?

CVE-2026-2863 is a medium-severity path traversal vulnerability in feng_ha_ha production_ssm, published on 21 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A flaw has been found in feng_ha_ha/megagao ssm-erp and production_ssm up to 4288d53bd35757b27f2d070057aefb2c07bdd097. The impacted element is the function deleteFile of the file FileServiceImpl.java. This manipulation causes path traversal. The attack can be initiated remotely. The exploit has been published and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. This product is distributed under two entirely different names. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-2863?


## How do I fix CVE-2026-2863?

No fix has been published for CVE-2026-2863 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-2863 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2863 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-2863 and fix it if it is affected.

What it is: CVE-2026-2863 is a medium-severity path traversal vulnerability in feng_ha_ha production_ssm, published on 21 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2863 exists.

Affected product: feng_ha_ha production_ssm. 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-2026-2863/ (Markdown: https://insights.sbomify.com/CVE-2026-2863/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-2863
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-2863
- OSV: https://osv.dev/vulnerability/CVE-2026-2863

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-2863/
Summaries are generated and may contain mistakes; the official description above is the record.