# CVE-2026-39920: BridgeHead FileStore < 24A Apache Axis2 Default Credentials RCE

> Unauthenticated attackers can use default Apache Axis2 credentials to upload malicious services and execute arbitrary OS commands on BridgeHead FileStore servers.

- **Severity:** Critical 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Apr 2026
- **Updated:** 24 Apr 2026
- **Also known as:** GHSA-3f6j-24pw-57fm

## What is CVE-2026-39920?

CVE-2026-39920 is a critical vulnerability in BridgeHead Software FileStore, published on 24 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

BridgeHead FileStore versions prior to 24A (released in early 2024) expose the Apache Axis2 administration module on network-accessible endpoints with default credentials that allows unauthenticated remote attackers to execute arbitrary OS commands. Attackers can authenticate to the admin console using default credentials, upload a malicious Java archive as a web service, and execute arbitrary commands on the host via SOAP requests to the deployed service.

Weakness: CWE-1391 (Use of Weak Credentials), CWE-1188 (Initialization of a Resource with an Insecure Default)

## Which versions are affected by CVE-2026-39920?


## How do I fix CVE-2026-39920?

No fix has been published for CVE-2026-39920 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-39920 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39920 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-39920 and fix it if it is affected.

What it is: CVE-2026-39920 is a critical vulnerability in BridgeHead Software FileStore, published on 24 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-2026-39920 exists.

Affected product: BridgeHead Software FileStore. 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-2026-39920/ (Markdown: https://insights.sbomify.com/CVE-2026-39920/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-39920
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-39920
- OSV: https://osv.dev/vulnerability/CVE-2026-39920

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-39920/
Summaries are generated and may contain mistakes; the official description above is the record.