CVE-2026-18101 IBM i is Affected By Multiple Vulnerabilities in WebSphere Application Server Liberty
A local attacker can gain elevated privileges on IBM i due to improper management of thread authority swaps in WebSphere Application Server Liberty.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18101?
CVE-2026-18101 is a high-severity vulnerability in Ibm I, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper management of thread authority swaps.
Weakness: CWE-269
Which versions are affected by CVE-2026-18101?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-18101?
No fix has been published for CVE-2026-18101 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-18101 being exploited?
There is no known exploitation of CVE-2026-18101 in the wild and no public exploit code.
Other vulnerabilities in Ibm I
- CVE-2026-96119 IBM i is Affected By An Improper Control of Code Generation Vulnerability in HTTP Server Administration GUI
- CVE-2026-16860 IBM i is Affected By Remote Code Execution Vulnerability []
- CVE-2026-17083 IBM i is Affected By Multiple Vulnerabilities in the Debug Server
- CVE-2026-17218 IBM i is Affected By Remote Code Execution Vulnerability in Line Printer Daemon []
- CVE-2026-17276 IBM i is Affected By Multiple Vulnerabilities in Navigator for i
Sources
Also known as GHSA-vwx2-74f6-ccgc.