# CVE-2026-13367: IBM Informix Dynamic Server Privilege Escalation Vulnerability in oninit Utility

> Local attackers can exploit the oninit utility to escalate privileges to root on IBM Informix Dynamic Server installations.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/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:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 12 Aug 2026
- **Updated:** 13 Aug 2026
- **Also known as:** GHSA-ghg9-3j74-rj7c

## What is CVE-2026-13367?

CVE-2026-13367 is a high-severity vulnerability in Ibm Informix Dynamic Server, published on 12 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit setuid-root utility.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-13367?

It affects 1 product.


Products: Ibm Informix Dynamic Server.

## How do I fix CVE-2026-13367?

No fix has been published for CVE-2026-13367 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13367 being exploited?

There is no known exploitation of CVE-2026-13367 in the wild and no public exploit code.

## Other vulnerabilities in Ibm Informix Dynamic Server

- [CVE-2010-4070](https://insights.sbomify.com/CVE-2010-4070/): Integer overflow in n/a (critical 10.0)
- [CVE-2009-2753](https://insights.sbomify.com/CVE-2009-2753/): Memory corruption in n/a (critical 10.0)
- [CVE-2008-0949](https://insights.sbomify.com/CVE-2008-0949/): Privilege escalation in n/a (critical 10.0)
- [CVE-2008-0768](https://insights.sbomify.com/CVE-2008-0768/): Memory corruption in n/a (critical 10.0)
- [CVE-2011-1033](https://insights.sbomify.com/CVE-2011-1033/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13367 and fix it if it is affected.

What it is: CVE-2026-13367 is a high-severity vulnerability in Ibm Informix Dynamic Server, published on 12 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-13367 in the wild and no public exploit code.

Affected product: Ibm Informix Dynamic Server. 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-2026-13367/ (Markdown: https://insights.sbomify.com/CVE-2026-13367/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13367
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13367
- OSV: https://osv.dev/vulnerability/CVE-2026-13367

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13367/
Summaries are generated and may contain mistakes; the official description above is the record.