# CVE-2026-4921: IBM Guardium Data Protection is affected by multiple vulnerabilities.

> Administrative users can obtain sensitive information via detailed technical error messages in the browser, aiding further attacks.

- **Severity:** Low 2.7 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Sep 2026
- **Updated:** 23 Sep 2026
- **Also known as:** GHSA-f58x-5mp5-4f54

## What is CVE-2026-4921?

CVE-2026-4921 is a low-severity vulnerability in Ibm Guardium Data Protection, published on 23 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

IBM Guardium Data Protection 12.2 could allow an administrative user to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system.

Weakness: CWE-209 (Generation of Error Message Containing Sensitive Information)

## Which versions are affected by CVE-2026-4921?

It affects 1 product.


Products: Ibm Guardium Data Protection.

## How do I fix CVE-2026-4921?

No fix has been published for CVE-2026-4921 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-4921 being exploited?

There is no known exploitation of CVE-2026-4921 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-2026-4921 and fix it if it is affected.

What it is: CVE-2026-4921 is a low-severity vulnerability in Ibm Guardium Data Protection, published on 23 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-4921 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-2026-4921/ (Markdown: https://insights.sbomify.com/CVE-2026-4921/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-4921
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-4921
- OSV: https://osv.dev/vulnerability/CVE-2026-4921

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-4921/
Summaries are generated and may contain mistakes; the official description above is the record.