# CVE-2012-5568: Denial of service in n/a

> Remote attackers can cause Apache Tomcat denial of service via partial HTTP requests, affecting availability for all users.

- **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:** 30 Nov 2012
- **Updated:** 9 Oct 2026
- **Also known as:** GHSA-v35g-wxj7-gxp3

## What is CVE-2012-5568?

CVE-2012-5568 is a medium-severity denial of service vulnerability in Apache Tomcat, published on 30 Nov 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Apache Tomcat through 7.0.x allows remote attackers to cause a denial of service (daemon outage) via partial HTTP requests, as demonstrated by Slowloris.

## Which versions are affected by CVE-2012-5568?

It affects 2 products.


Products: Apache Tomcat, Opensuse Opensuse.

## How do I fix CVE-2012-5568?

No fix has been published for CVE-2012-5568 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-5568 being exploited?

There is no known exploitation of CVE-2012-5568 in the wild and no public exploit code.

## Other vulnerabilities in Apache Tomcat

- [CVE-2025-24813](https://insights.sbomify.com/CVE-2025-24813/): Apache Tomcat Path Equivalence (critical 10.0, exploited in the wild)
- [CVE-2016-8735](https://insights.sbomify.com/CVE-2016-8735/): Apache Tomcat Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2017-12617](https://insights.sbomify.com/CVE-2017-12617/): Apache Tomcat Remote Code Execution (high 8.1, exploited in the wild)
- [CVE-2017-12615](https://insights.sbomify.com/CVE-2017-12615/): Apache Tomcat on Windows Remote Code Execution (high 8.1, exploited in the wild)
- [CVE-2026-34486](https://insights.sbomify.com/CVE-2026-34486/): Apache Tomcat Missing Encryption of Sensitive Data (high 7.5, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-5568 and fix it if it is affected.

What it is: CVE-2012-5568 is a medium-severity denial of service vulnerability in Apache Tomcat, published on 30 Nov 2012. 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-2012-5568 in the wild and no public exploit code.

Affected product: Apache Tomcat. 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-2012-5568/ (Markdown: https://insights.sbomify.com/CVE-2012-5568/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-5568
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-5568
- OSV: https://osv.dev/vulnerability/CVE-2012-5568

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-5568/
Summaries are generated and may contain mistakes; the official description above is the record.