CVE-2026-18683 IBM i is Affected By privilege escalation in Navigator for i

High 8.8 Published Updated

An authenticated user can escalate privileges to root and execute commands in IBM i Navigator for i.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-18683?

CVE-2026-18683 is a high-severity vulnerability in Ibm I, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM i 7.6, 7.5, 7.4, and 7.3 is vulnerable to privilege escalation via Navigator for i. An authenticated user could elevate privileges to a root user to execute commands.

Weakness: CWE-78

Which versions are affected by CVE-2026-18683?

It affects 1 product.

Products include Ibm I.

How do I fix CVE-2026-18683?

No fix has been published for CVE-2026-18683 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-18683 being exploited?

There is no known exploitation of CVE-2026-18683 in the wild and no public exploit code.

All Ibm I vulnerabilities

Sources

Also known as GHSA-wj8v-wr57-4g99.

Is CVE-2026-18683 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free