CVE-2026-30305
Syntx Command Auto-Approval OS Command Injection Vulnerability
Description
Syntx's command auto-approval module contains a critical OS command injection vulnerability that renders its whitelist security mechanism completely ineffective. The system relies on fragile regular expressions to parse command structures; while it attempts to intercept dangerous operations, it fails to account for standard Shell command substitution syntax (specifically $(...)and backticks ...). An attacker can construct a command such as git log --grep="$(malicious_command)", forcing Syntx to misidentify it as a safe git operation and automatically approve it. The underlying Shell prioritizes the execution of the malicious code injected within the arguments, resulting in Remote Code Execution without any user interaction.
INFO
Published Date :
March 30, 2026, 8:16 p.m.
Last Modified :
April 8, 2026, 4:01 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Validate all user inputs rigorously.
- Sanitize shell metacharacters and command substitutions.
- Implement a robust command parsing mechanism.
- Avoid fragile regular expressions for parsing.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-30305.
| URL | Resource |
|---|---|
| https://github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/5 | Third Party Advisory |
| https://syntx.dev/ | Broken Link |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-30305 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-30305
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-30305 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-30305 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 08, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:orangecat:syntx:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 Added Reference Type MITRE: https://github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/5 Types: Third Party Advisory Added Reference Type MITRE: https://syntx.dev/ Types: Broken Link -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 01, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-94 -
New CVE Received by [email protected]
Mar. 30, 2026
Action Type Old Value New Value Added Description Syntx's command auto-approval module contains a critical OS command injection vulnerability that renders its whitelist security mechanism completely ineffective. The system relies on fragile regular expressions to parse command structures; while it attempts to intercept dangerous operations, it fails to account for standard Shell command substitution syntax (specifically $(...)and backticks ...). An attacker can construct a command such as git log --grep="$(malicious_command)", forcing Syntx to misidentify it as a safe git operation and automatically approve it. The underlying Shell prioritizes the execution of the malicious code injected within the arguments, resulting in Remote Code Execution without any user interaction. Added Reference https://github.com/Secsys-FDU/LLM-Tool-Calling-CVEs/issues/5 Added Reference https://syntx.dev/