CVE-2026-18318 IBM i Information Disclosure
A remote attacker can perform brute-force attacks to obtain credentials due to improper authentication in IBM i.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18318?
CVE-2026-18318 is a medium-severity authentication bypass vulnerability in Ibm I, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote attacker to perform brute-force attacks to obtain credentials due to improper authentication.
Weakness: CWE-307
Which versions are affected by CVE-2026-18318?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-18318?
No fix has been published for CVE-2026-18318 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-18318 being exploited?
There is no known exploitation of CVE-2026-18318 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-hp4r-58x7-px7f.