CVE-2026-30861
CRITICAL
GHSA-r55h-3rwj-hcmg
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
4Description
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.
Analysis
OS command injection in WeKnora from version 0.2.5 allows authenticated users to execute arbitrary system commands. CVSS 9.9 with scope change. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Remediation
Within 24 hours: Inventory all systems running WeKnora versions 0.2.5-0.2.9 and isolate affected instances from production networks if possible. Within 7 days: Implement network segmentation to restrict access to WeKnora instances, deploy WAF rules blocking MCP stdio configuration requests, and disable MCP stdio functionality if not operationally critical. …
Sign in for detailed remediation steps.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today