RCE in Tokfinity Infcode
CVE-2026-30309
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (29.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
Weakness classification (CWE)
References
- www.tokfinity.com/infcode (Product)
- github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/11 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2026-30309?
- CVE-2026-30309 is a high-severity vulnerability in Tokfinity Infcode, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-03-31.
- How severe is CVE-2026-30309?
- High severity. CVSS v3 base score is 7.8 out of 10.