139 lines
6.0 KiB
JSON
139 lines
6.0 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-2026-79746",
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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": "2026-08-25T14:08:18.108Z",
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"datePublished": "2026-08-31T17:55:43.528Z",
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"dateUpdated": "2026-09-01T14:59:30.891Z"
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},
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"containers": {
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"cna": {
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"title": "MCPHub: Server-scoped bearer key gains access to an entire group via partial (any-overlap) server matching",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-863",
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"lang": "en",
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"description": "CWE-863: Incorrect Authorization",
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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": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 8.1,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
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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/samanhappy/mcphub/security/advisories/GHSA-454m-4vm6-842f",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/samanhappy/mcphub/security/advisories/GHSA-454m-4vm6-842f"
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},
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{
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"name": "https://github.com/samanhappy/mcphub/pull/1059",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/samanhappy/mcphub/pull/1059"
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},
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{
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"name": "https://github.com/samanhappy/mcphub/commit/2b10ae36112ce68deebf910b22505d44efcef552",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/samanhappy/mcphub/commit/2b10ae36112ce68deebf910b22505d44efcef552"
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},
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{
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"name": "https://github.com/samanhappy/mcphub/releases/tag/v1.0.31",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/samanhappy/mcphub/releases/tag/v1.0.31"
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}
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],
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"affected": [
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{
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"vendor": "samanhappy",
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"product": "mcphub",
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"versions": [
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{
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"version": "< 1.0.31",
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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": "2026-08-31T17:55:43.528Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.31, when a bearer key with accessType: 'servers' (or 'custom') is used against a group route, isBearerKeyAllowedForRequest grants access to the entire group as long as any single server in that group appears in the key's allowedServers list — not only when every server the key is scoped to matches, and critically, without ever re-checking allowedServers again once the group-level connection is authorized. A key explicitly scoped to one specific server therefore also grants full access to every other server that happens to share a group with it, including servers the key was never authorized for. This issue has been patched in version 1.0.31."
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}
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],
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"source": {
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"advisory": "GHSA-454m-4vm6-842f",
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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": "2026-09-01T14:16:53.516019Z",
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"id": "CVE-2026-79746",
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"options": [
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{
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"Exploitation": "none"
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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": "total"
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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": "2026-09-01T14:59:30.891Z"
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}
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}
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]
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}
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} |