# CVE-2026-10853: IBM MQ queue manager is vulnerable to remote code execution

> An authenticated attacker with cluster access can execute arbitrary code or cause denial of service in IBM MQ due to improper validation of message lengths.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** 18 Sep 2026
- **Updated:** 21 Sep 2026
- **Also known as:** GHSA-pwg9-6g7w-xg4q

## What is CVE-2026-10853?

CVE-2026-10853 is a high-severity code injection vulnerability in Ibm Mq, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM MQ could allow an authenticated attacker with cluster access to cause a denial of service or potentially execute arbitrary code due to improper validation of cluster command message lengths.

Weakness: CWE-470 (Use of Externally-Controlled Input to Select Classes or Code)

## Which versions are affected by CVE-2026-10853?

It affects 1 product.


Products: Ibm Mq.

## How do I fix CVE-2026-10853?

No fix has been published for CVE-2026-10853 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-10853 being exploited?

There is no known exploitation of CVE-2026-10853 in the wild and no public exploit code.

## Other vulnerabilities in Ibm Mq

- [CVE-2026-10575](https://insights.sbomify.com/CVE-2026-10575/): IBM MQ queue manager is vulnerable to remote code execution (high 8.8)
- [CVE-2026-11375](https://insights.sbomify.com/CVE-2026-11375/): IBM MQ queue manager is vulnerable to remote code execution (high 8.8)
- [CVE-2026-11378](https://insights.sbomify.com/CVE-2026-11378/): IBM MQ queue manager is vulnerable to remote code execution (high 8.8)
- [CVE-2022-22489](https://insights.sbomify.com/CVE-2022-22489/): XML external entity in MQ (high 8.2)
- [CVE-2026-10027](https://insights.sbomify.com/CVE-2026-10027/): IBM MQ queue manager is vulnerable to unauthenticated remote code execution (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-10853 and fix it if it is affected.

What it is: CVE-2026-10853 is a high-severity code injection vulnerability in Ibm Mq, published on 18 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-2026-10853 in the wild and no public exploit code.

Affected product: Ibm Mq. 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-2026-10853/ (Markdown: https://insights.sbomify.com/CVE-2026-10853/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-10853
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-10853
- OSV: https://osv.dev/vulnerability/CVE-2026-10853

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-10853/
Summaries are generated and may contain mistakes; the official description above is the record.