# CVE-2026-84276: IBM Guardium Data Protection Denial of Service

> An unauthenticated remote attacker can crash the edge-controller process by sending malformed task data to the gRPC service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Oct 2026
- **Updated:** 12 Oct 2026
- **Also known as:** GHSA-g3c4-g93w-p4xg

## What is CVE-2026-84276?

CVE-2026-84276 is a high-severity denial of service vulnerability in Ibm Guardium Data Protection, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM Guardium Data Protection 12.2.2 is affected by a denial-of-service vulnerability in the edge-controller. An unauthenticated remote attacker with network access to the edge-controller gRPC service can provide malformed task data that triggers an unchecked type assertion, causing the edge-controller process to terminate unexpectedly.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2026-84276?

It affects 1 product.


Products: Ibm Guardium Data Protection.

## How do I fix CVE-2026-84276?

No fix has been published for CVE-2026-84276 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-84276 being exploited?

There is no known exploitation of CVE-2026-84276 in the wild and no public exploit code.

## Other vulnerabilities in Ibm Guardium Data Protection

- [CVE-2026-80442](https://insights.sbomify.com/CVE-2026-80442/): IBM Guardium Data Protection is affected by multiple vulnerabilities. (critical 9.9)
- [CVE-2026-84064](https://insights.sbomify.com/CVE-2026-84064/): IBM Guardium Data Protection is affected by multiple vulnerabilities. (critical 9.9)
- [CVE-2026-84075](https://insights.sbomify.com/CVE-2026-84075/): IBM Guardium Data Protection is affected by multiple vulnerabilities. (critical 9.9)
- [CVE-2026-84078](https://insights.sbomify.com/CVE-2026-84078/): IBM Guardium Data Protection is affected by multiple vulnerabilities. (critical 9.9)
- [CVE-2026-75875](https://insights.sbomify.com/CVE-2026-75875/): Multiple vulnerabilities affect the Sniffer component as part of IBM Guardium Data Protection (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-84276 and fix it if it is affected.

What it is: CVE-2026-84276 is a high-severity denial of service vulnerability in Ibm Guardium Data Protection, published on 8 Oct 2026. 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-2026-84276 in the wild and no public exploit code.

Affected product: Ibm Guardium Data Protection. 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-2026-84276/ (Markdown: https://insights.sbomify.com/CVE-2026-84276/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-84276
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-84276
- OSV: https://osv.dev/vulnerability/CVE-2026-84276

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-84276/
Summaries are generated and may contain mistakes; the official description above is the record.