118 lines
4.9 KiB
JSON
118 lines
4.9 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-30856",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-03-05T21:27:35.342Z",
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"datePublished": "2026-03-07T16:32:44.566Z",
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"dateUpdated": "2026-03-09T18:24:32.877Z"
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},
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"containers": {
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"cna": {
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"title": "WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-706",
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"lang": "en",
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"description": "CWE-706: Use of Incorrectly-Resolved Name or Reference",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.9,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "LOW",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:L",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/Tencent/WeKnora/security/advisories/GHSA-67q9-58vj-32qx",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/Tencent/WeKnora/security/advisories/GHSA-67q9-58vj-32qx"
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}
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],
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"affected": [
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{
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"vendor": "Tencent",
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"product": "WeKnora",
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"versions": [
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{
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"version": "< 0.3.0",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-03-07T16:32:44.566Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "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."
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}
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],
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"source": {
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"advisory": "GHSA-67q9-58vj-32qx",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-03-09T17:52:22.657564Z",
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"id": "CVE-2026-30856",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-03-09T18:24:32.877Z"
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}
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}
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]
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}
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} |