CVE-2026-2311 IBM i is affected by a privilege escalation vulnerability in Web Administration GUI []
A malicious actor can execute user-controlled code with administrator privileges due to an invalid authorization check in the IBM i Web Administration GUI.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-2311?
CVE-2026-2311 is a medium-severity vulnerability in Ibm I, published on 30 Apr 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
IBM i 7.6, 7.5, 7.4, 7.3, and 7.2 s vulnerable to privilege escalation caused by an invalid IBM i Web Administration GUI authorization check. A malicious actor could cause user-controlled code to run with administrator privilege.
Weakness: CWE-284
Which versions are affected by CVE-2026-2311?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-2311?
No fix has been published for CVE-2026-2311 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-2311 being exploited?
There is no known exploitation of CVE-2026-2311 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-q9c4-6v4r-wrmm.