CVE-2026-30856

Katalog CVE

CVSS 7.6 · High EPSS 0,30%

Kerentanan Use of Incorrectly-Resolved Name or Reference pada tencent weknora. Skor CVSS 3.1 7.6 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

7 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.6 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-706: Use of Incorrectly-Resolved Name or Reference

EPSS (30 hari)

0,30% peluang dieksploitasi; lebih tinggi dari 21,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/Tencent/WeKnora/security/advisories/GHSA-67q9-58vj-32qx exploit · advisory vendor