# CVE-2026-3676: There are multiple vulnerabilities in IBM DB2 bundled with IBM Application Performance Management products.

> An authenticated user can cause a denial of service in IBM Cloud APM by exploiting improper neutralization in the DB2 Fenced environment.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** 27 May 2026
- **Updated:** 27 May 2026
- **Also known as:** GHSA-p4qj-fgm6-87w7

## What is CVE-2026-3676?

CVE-2026-3676 is a medium-severity denial of service vulnerability in IBM Cloud APM, Advanced Private, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

IBM Cloud APM, Base Private 8.1.4 and IBM Cloud APM, Advanced Private 8.1.4 IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of the Fenced environment.

Weakness: CWE-1284 (Improper Validation of Specified Quantity in Input)

## Which versions are affected by CVE-2026-3676?

It affects 1 product.


Products: Ibm Cloud Application Performance Managemen.

## How do I fix CVE-2026-3676?

No fix has been published for CVE-2026-3676 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-3676 being exploited?

There is no known exploitation of CVE-2026-3676 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-3676 and fix it if it is affected.

What it is: CVE-2026-3676 is a medium-severity denial of service vulnerability in IBM Cloud APM, Advanced Private, published on 27 May 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-2026-3676 in the wild and no public exploit code.

Affected product: IBM Cloud APM, Advanced Private. 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-2026-3676/ (Markdown: https://insights.sbomify.com/CVE-2026-3676/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-3676
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-3676
- OSV: https://osv.dev/vulnerability/CVE-2026-3676

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-3676/
Summaries are generated and may contain mistakes; the official description above is the record.