CVE-2026-18515 IBM i is Affected By Multiple Vulnerabilities in Navigator for i and Digital Certificate Manager for i.
Authenticated attackers can bypass Navigator for i restrictions to upload files to unintended file system locations on IBM i systems.
- 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-2026-18515?
CVE-2026-18515 is a medium-severity path traversal vulnerability in IBM i, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to place files into the file system with Navigator for i when they should be blocked by Navigator configuration. This could allow attackers to upload files onto the system to places the Navigator support did not intend, but only if the profile could already do that by itself.
Weakness: CWE-22
Which versions are affected by CVE-2026-18515?
How do I fix CVE-2026-18515?
No fix has been published for CVE-2026-18515 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-18515 being exploited?
There is no known exploitation of CVE-2026-18515 in the wild and no public exploit code.
Sources
Also known as GHSA-p7p7-hjp3-j222.