CVE-2026-93886 IBM i is Affected By An Improper Neutralization of Input Vulnerability in HTTP Server Administration GUI
Remote authenticated attackers can execute arbitrary script code in the IBM i HTTP Server Administration GUI due to improper input validation.
- 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-2026-93886?
CVE-2026-93886 is a high-severity cross-site scripting vulnerability in Ibm I, published on 12 Oct 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 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to execute arbitrary script code due to improper validation of user-supplied input.
Weakness: CWE-79
Which versions are affected by CVE-2026-93886?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-93886?
No fix has been published for CVE-2026-93886 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-93886 being exploited?
There is no known exploitation of CVE-2026-93886 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-mj4j-q283-wr2g.