CVE-2026-30861 Details
Description
WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. From version 0.2.5 to before version 0.2.10, an unauthenticated remote code execution (RCE) vulnerability exists in the MCP stdio configuration validation. The application allows unrestricted user registration, meaning any attacker can create an account and exploit the command injection flaw. Despite implementing a whitelist for allowed commands (npx, uvx) and blacklists for dangerous arguments and environment variables, the validation can be bypassed using the -p flag with npx node. This allows any attacker to execute arbitrary commands with the application's privileges, leading to complete system compromise. This issue has been patched in version 0.2.10.
A critical unauthenticated remote code execution vulnerability has been identified in WeKnora versions 0.2.5 prior to 0.2.10. The issue arises in the MCP stdio configuration validation, where an open registration policy allows attackers to create accounts and exploit a command injection flaw. Although the application implemented a whitelist for allowed commands and blacklists for dangerous arguments and environment variables, the validation could be bypassed using the -p flag with npx node. This exploitation enables arbitrary command execution with the application's privileges, potentially leading to complete system compromise.
Users are advised to upgrade to WeKnora version 0.2.10 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 9, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Tencent/WeKnora/security/advisories/GHSA-r55h-3rwj-hcmg | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| tencent weknora | >= 0.2.5, < 0.2.10 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 9, 2026 | Initial Analysis | [email protected] |
| Mar 7, 2026 | New CVE Received | [email protected] |