CVE-2026-30309 Command injection in n/a
Attackers can execute arbitrary PowerShell commands by bypassing the terminal's blacklist via syntax obfuscation when users import malicious files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-30309?
CVE-2026-30309 is a high-severity command injection vulnerability in n/a, published on 31 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
InfCode's terminal auto-execution module contains a critical command filtering vulnerability that renders its blacklist security mechanism completely ineffective. The predefined blocklist fails to cover native high-risk commands in Windows PowerShell (such as powershell), and the matching algorithm lacks dynamic semantic parsing unable to recognize string concatenation, variable assignment, or double-quote interpolation in Shell syntax. Malicious commands can bypass interception through simple syntax obfuscation. An attacker can construct a file containing malicious instructions for remote code injection. When a user imports and views such a file in the IDE, the Agent executes dangerous PowerShell commands outside the blacklist without user confirmation, resulting in arbitrary command execution or sensitive data leakage.
Weakness: CWE-78
Which versions are affected by CVE-2026-30309?
It affects 1 product.
Products include Tokfinity Infcode.
How do I fix CVE-2026-30309?
No fix has been published for CVE-2026-30309 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-30309 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30309 exists.
Sources
Also known as GHSA-cm3j-25qj-ffhm.