# CVE-2026-54106: U.S. GAO EPDS and CBCA EDS network access control bypass

> Remote attackers with compromised admin credentials can bypass network access controls by spoofing X-Forwarded-For headers to log in.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Jun 2026
- **Updated:** 24 Jun 2026
- **Also known as:** GHSA-96f7-vmp7-7rvh

## What is CVE-2026-54106?

CVE-2026-54106 is a medium-severity authentication bypass vulnerability in Civilian Board of Contract Appeals Electronic Docketing System (EDS), published on 18 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

The U.S. Government Accountability Office (GAO) Electronic Protest Docketing System (EPDS) and Civilian Board of Contract Appeals (CBCA) Electronic Docketing System (EDS) do not validate X-Forwarded-For HTTP headers, allowing a remote attacker with compromised administrator credentials to bypass network access controls and log in.

Weakness: CWE-940 (Improper Verification of Source of a Communication Channel)

## Which versions are affected by CVE-2026-54106?


## How do I fix CVE-2026-54106?

No fix has been published for CVE-2026-54106 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-54106 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54106 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-54106 and fix it if it is affected.

What it is: CVE-2026-54106 is a medium-severity authentication bypass vulnerability in Civilian Board of Contract Appeals Electronic Docketing System (EDS), published on 18 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-54106 exists.

Affected product: Civilian Board of Contract Appeals Electronic Docketing System (EDS). 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-2026-54106/ (Markdown: https://insights.sbomify.com/CVE-2026-54106/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-54106
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-54106
- OSV: https://osv.dev/vulnerability/CVE-2026-54106

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-54106/
Summaries are generated and may contain mistakes; the official description above is the record.