CVE-2026-49483 Code for IBMi: Uses IBM i components with blind check allowing arbitrary code execution
A local attacker can modify IBM i components to execute arbitrary code under the connecting user's account due to insufficient integrity checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-49483?
CVE-2026-49483 is a high-severity vulnerability in codefori vscode-ibmi, published on 12 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Code for IBMi is a Visual Studio Code extension for maintaining and compiling ILE languages on the IBMi platform. Prior to 3.0.1, IBMi components implementing IBMiComponent were accepted after checking that a procedure existed without reliably verifying component integrity. Components installed with broad public permissions allow another local account to alter a program such as GETMBRINFO. A later connection can execute the altered program under the connecting account because the LONG_COMMENT marker alone does not establish integrity. This issue is fixed in version 3.0.1.
Which versions are affected by CVE-2026-49483?
How do I fix CVE-2026-49483?
No fix has been published for CVE-2026-49483 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-49483 being exploited?
There is no known exploitation of CVE-2026-49483 in the wild and no public exploit code.
Sources
Also known as GHSA-rmqv-7c5v-wvjc.