CVE-2026-17491 IBM i is Affected By An Improper Privilege Management Vulnerability in OpenSSH
Authenticated attackers can bypass ChrootDirectory restrictions in OpenSSH on IBM i, leading to privilege escalation and security bypass.
- 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-2026-17491?
CVE-2026-17491 is a medium-severity vulnerability in Ibm I, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM i 7.3, 7.4, 7.5, and 7.6 is could allow a remote authenticated attacker to bypass security restrictions due to improper enforcement of the ChrootDirectory configuration directive.
Weakness: CWE-269
Which versions are affected by CVE-2026-17491?
It affects 1 product.
Products include Ibm I.
How do I fix CVE-2026-17491?
No fix has been published for CVE-2026-17491 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-17491 being exploited?
There is no known exploitation of CVE-2026-17491 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-qp6p-gw78-jpxj.