# CVE-2026-81832: IBM App Connect Enterprise and IBM Integration Bus for z/OS Adapter nodes are vulnerable to multiple CVEs

> Attackers can exploit XML external entity vulnerabilities in IBM App Connect Enterprise and Integration Bus SAP Adapters to read sensitive data or cause denial of service.

- **Severity:** High 7.7 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Sep 2026
- **Updated:** 4 Sep 2026
- **Also known as:** GHSA-273w-f4pj-3j77

## What is CVE-2026-81832?

CVE-2026-81832 is a high-severity vulnerability in IBM App Connect Enterprise, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 SAP Adapter is vulnerable to an XML external entity (XXE) attack.

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

## Which versions are affected by CVE-2026-81832?

It affects 2 products.


Products: Ibm App Connect Enterprise, Ibm Integration Bus for Z\/Os.

## How do I fix CVE-2026-81832?

No fix has been published for CVE-2026-81832 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-81832 being exploited?

There is no known exploitation of CVE-2026-81832 in the wild and no public exploit code.

## Other vulnerabilities in IBM App Connect Enterprise

- [CVE-2026-15435](https://insights.sbomify.com/CVE-2026-15435/): IBM App Connect Enterprise is vulnerable to arbitrary file write vulnerability (critical 9.8)
- [CVE-2024-22317](https://insights.sbomify.com/CVE-2024-22317/): IBM App Connect Enterprise denial of service (critical 9.1)
- [CVE-2026-75624](https://insights.sbomify.com/CVE-2026-75624/): IBM App Connect Enterprise is vulnerable to privilege escalation and Denial of Service (high 8.8)
- [CVE-2026-14522](https://insights.sbomify.com/CVE-2026-14522/): IBM App Connect Enterprise is vulnerable to an arbitrary file read and arbitrary changes to configuration settings (high 8.8)
- [CVE-2026-12947](https://insights.sbomify.com/CVE-2026-12947/): IBM App Connect Enterprise is vulnerable to Confidentiality disclosure on Discovery Connector nodes (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-81832 and fix it if it is affected.

What it is: CVE-2026-81832 is a high-severity vulnerability in IBM App Connect Enterprise, published on 4 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-81832 in the wild and no public exploit code.

Affected product: IBM App Connect Enterprise. 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-2026-81832/ (Markdown: https://insights.sbomify.com/CVE-2026-81832/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-81832
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81832
- OSV: https://osv.dev/vulnerability/CVE-2026-81832

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-81832/
Summaries are generated and may contain mistakes; the official description above is the record.