CVE-2026-30303 Command injection in n/a
Attackers can bypass command whitelists in Axon Code on Windows to execute arbitrary commands via OS command injection.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-30303?
CVE-2026-30303 is a critical command injection vulnerability in n/a, published on 27 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The command auto-approval module in Axon Code contains an OS Command Injection vulnerability, rendering its whitelist security mechanism ineffective. The vulnerability stems from the incorrect use of an incompatible command parser (the Unix-based shell-quote library) to analyze commands on the Windows platform, coupled with a failure to correctly handle Windows CMD-specific escape sequences (^). Attackers can exploit this discrepancy between the parsing logic and the execution environment by constructing payloads such as git log ^" & malicious_command ^". The Axon Code parser is deceived by the escape characters, misinterpreting the malicious command connector (&) as being within a protected string argument and thus auto-approving the command. However, the underlying Windows CMD interpreter ignores the escaped quotes, parsing and executing the subsequent malicious command directly. This allows attackers to achieve arbitrary Remote Code Execution (RCE) after bypassing what appears to be a legitimate Git whitelist check.
Weakness: CWE-78
Which versions are affected by CVE-2026-30303?
It affects 1 product.
Products include Matterai Axon Code.
How do I fix CVE-2026-30303?
No fix has been published for CVE-2026-30303 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-2026-30303 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30303 exists.
Sources
Also known as GHSA-vqqg-3vff-x22p.