WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a vulnerability involving tool name collision and indirect prompt injection allows a malicious remote MCP server to hijack tool execution. By exploiting an ambiguous naming convention in the MCP client (mcp_{service}_{tool}), an attacker can register a malicious tool that overwrites a legitimate one (e.g., tavily_extract). This enables the attacker to redirect LLM execution flow, exfiltrate system prompts, context, and potentially execute other tools with the user's privileges. This issue has been patched in version 0.3.0.
Metrics
Affected Vendors & Products
References
History
Mon, 09 Mar 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 09 Mar 2026 10:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Tencent
Tencent weknora |
|
| Vendors & Products |
Tencent
Tencent weknora |
Sat, 07 Mar 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0, a vulnerability involving tool name collision and indirect prompt injection allows a malicious remote MCP server to hijack tool execution. By exploiting an ambiguous naming convention in the MCP client (mcp_{service}_{tool}), an attacker can register a malicious tool that overwrites a legitimate one (e.g., tavily_extract). This enables the attacker to redirect LLM execution flow, exfiltrate system prompts, context, and potentially execute other tools with the user's privileges. This issue has been patched in version 0.3.0. | |
| Title | WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection | |
| Weaknesses | CWE-706 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-03-07T16:32:44.566Z
Updated: 2026-03-09T18:24:32.877Z
Reserved: 2026-03-05T21:27:35.342Z
Link: CVE-2026-30856
Updated: 2026-03-09T17:52:23.787Z
Status : Undergoing Analysis
Published: 2026-03-07T17:15:53.210
Modified: 2026-03-09T13:35:07.393
Link: CVE-2026-30856
No data.