Weknora
CVE-2026-30856
MEDIUM
GHSA-67q9-58vj-32qx
Severity by source
AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:L
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
AnalysisAI
Tool name collision in WeKnora's MCP client integration allows remote attackers with network access to register malicious tools that overwrite legitimate ones, enabling prompt injection attacks and potential data exfiltration. An attacker exploiting this vulnerability can redirect LLM execution to steal system prompts and context data, or execute arbitrary tools with the privileges of authenticated users. This affects WeKnora versions prior to 0.3.0.
Technical ContextAI
This vulnerability (CWE-706: Use of Incorrectly-Resolved Name or Reference) affects WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval.. 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 executi
RemediationAI
Fixed in version 0.3.0.. Restrict network access to the affected service where possible.
WeKnora LLM framework (before 0.2.5) allows authenticated users to inject MCP stdio commands that the server executes as
OS command injection in WeKnora from version 0.2.5 allows authenticated users to execute arbitrary system commands. CVSS
SQL injection in WeKnora LLM document understanding framework allows authenticated users to extract arbitrary database c
Insufficient authorization checks in WeKnora's tenant management endpoints allow any authenticated user to read, modify,
DNS rebinding in WeKnora's web_fetch tool allows authenticated attackers to bypass URL validation and access internal re
WeKnora's document import feature is vulnerable to Server-Side Request Forgery through HTTP redirects, allowing unauthen
WeKnora versions before 0.2.5 allow unauthenticated attackers to bypass database query restrictions through prompt injec
A security flaw has been discovered in Tencent WeKnora 0.1.0. Rated medium severity (CVSS 6.9), this vulnerability is re
Weknora versions up to 0.3.0 is affected by authorization bypass through user-controlled key (CVSS 5.3).
WeKnora's URL-based document ingestion endpoint (POST /api/v1/knowledge-bases/:id/knowledge/url) allows authenticated us
Authorization bypass in Tencent WeKnora's Config API endpoint allows authenticated attackers to access unauthorized know
WeKnora versions prior to 0.2.12 suffer from inadequate tenant isolation in database queries, permitting any authenticat
Same technique Code Injection
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SUSE
Severity: MediumShare
External POC / Exploit Code
Leaving vuln.today