# CVE-2004-2726: Null dereference in n/a

> Remote attackers can crash the MailEnable HTTPMail service by sending malformed Authorization headers, causing a denial of service.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Oct 2007
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-pw85-4jwp-m329

## What is CVE-2004-2726?

CVE-2004-2726 is a medium-severity vulnerability in Mailenable Mailenable, published on 9 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

HTTPMail service in MailEnable Professional 1.18 does not properly handle arguments to the Authorization header, which allows remote attackers to cause a denial of service (null dereference and application crash).  NOTE: This is a different vulnerability than CVE-2005-1348.

## Which versions are affected by CVE-2004-2726?

It affects 1 product.


Products: Mailenable Mailenable.

## How do I fix CVE-2004-2726?

No fix has been published for CVE-2004-2726 yet. Limit exposure of the affected software until one is available.

## Is CVE-2004-2726 being exploited?

There is no known exploitation of CVE-2004-2726 in the wild and no public exploit code.

## Other vulnerabilities in Mailenable Mailenable

- [CVE-2015-9280](https://insights.sbomify.com/CVE-2015-9280/): XML external entity in n/a (critical 10.0)
- [CVE-2025-44148](https://insights.sbomify.com/CVE-2025-44148/): Cross-site scripting in n/a (critical 9.8)
- [CVE-2019-12924](https://insights.sbomify.com/CVE-2019-12924/): XML external entity in n/a (critical 9.8)
- [CVE-2015-9278](https://insights.sbomify.com/CVE-2015-9278/): MailEnable before 8.60 allows Privilege Escalation because admin accounts could be created as a consequence of %0A mishandling in AUTH.TAB a (critical 9.8)
- [CVE-2015-9277](https://insights.sbomify.com/CVE-2015-9277/): Path traversal in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2004-2726 and fix it if it is affected.

What it is: CVE-2004-2726 is a medium-severity vulnerability in Mailenable Mailenable, published on 9 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2004-2726 in the wild and no public exploit code.

Affected product: Mailenable Mailenable. 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-2004-2726/ (Markdown: https://insights.sbomify.com/CVE-2004-2726/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2004-2726
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2004-2726
- OSV: https://osv.dev/vulnerability/CVE-2004-2726

---
From sbomify Insights: https://insights.sbomify.com/CVE-2004-2726/
Summaries are generated and may contain mistakes; the official description above is the record.