# CVE-2016-9691: XML external entity in WebSphere Cast Iron Cloud integration

> Remote attackers can exploit XML External Entity injection to expose sensitive information or cause denial of service in IBM WebSphere Cast Iron.

- **Severity:** High 8.6 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 May 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-5v3w-gv84-5cv3

## What is CVE-2016-9691?

CVE-2016-9691 is a high-severity vulnerability in IBM Corporation WebSphere Cast Iron Cloud integration, published on 5 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM WebSphere Cast Iron Solution 7.0.0 and 7.5.0.0 is vulnerable to a denial of service, caused by an XML External Entity Injection (XXE) error when processing XML data. A remote attacker could exploit this vulnerability to expose highly sensitive information or consume all available memory resources. IBM X-Force ID: 119515.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2016-9691?

It affects 1 product.


Products: Ibm Websphere Cast Iron Solution.

## How do I fix CVE-2016-9691?

No fix has been published for CVE-2016-9691 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-9691 being exploited?

There is no known exploitation of CVE-2016-9691 in the wild and no public exploit code.

## Other vulnerabilities in IBM Corporation WebSphere Cast Iron Cloud integration

- [CVE-2016-9692](https://insights.sbomify.com/CVE-2016-9692/): Server-side request forgery in WebSphere Cast Iron Cloud integration (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-9691 and fix it if it is affected.

What it is: CVE-2016-9691 is a high-severity vulnerability in IBM Corporation WebSphere Cast Iron Cloud integration, published on 5 May 2017. 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-2016-9691 in the wild and no public exploit code.

Affected product: IBM Corporation WebSphere Cast Iron Cloud integration. 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-2016-9691/ (Markdown: https://insights.sbomify.com/CVE-2016-9691/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-9691
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-9691
- OSV: https://osv.dev/vulnerability/CVE-2016-9691

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-9691/
Summaries are generated and may contain mistakes; the official description above is the record.