125 lines
5.4 KiB
JSON
125 lines
5.4 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-2026-54309",
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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": "2026-06-12T18:42:02.222Z",
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"datePublished": "2026-06-23T15:36:13.270Z",
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"dateUpdated": "2026-06-23T15:45:15.836Z"
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},
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"containers": {
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"cna": {
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"title": "n8n: n8n MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-306",
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"lang": "en",
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"description": "CWE-306: Missing Authentication for Critical Function",
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.8,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N",
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"version": "4.0"
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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/n8n-io/n8n/security/advisories/GHSA-qrx8-25qr-5r7v",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-qrx8-25qr-5r7v"
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}
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],
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"affected": [
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{
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"vendor": "n8n-io",
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"product": "n8n",
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"versions": [
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{
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"version": ">= 2.26.0, < 2.26.2",
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"status": "affected"
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},
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{
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"version": "< 2.25.7",
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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": "2026-06-23T15:36:13.270Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP transport mode, the MCP endpoint accepts session initialization and tool invocation requests without any authentication. Any network-reachable client, or any website visited by the user, can establish an MCP session and invoke browser-control tools. Where the n8n AI Browser Bridge extension is installed and a browser connection is active, an unauthenticated caller can access browser-control capabilities including navigation, JavaScript evaluation, and cookie and storage access against the user's real browser profile. This issue only affects instances where @n8n/mcp-browser is run with the HTTP transport (--transport http). This vulnerability is fixed in 2.25.7 and 2.26.2."
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}
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],
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"source": {
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"advisory": "GHSA-qrx8-25qr-5r7v",
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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": "2026-06-23T15:45:10.329452Z",
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"id": "CVE-2026-54309",
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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": "yes"
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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": "2026-06-23T15:45:15.836Z"
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}
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}
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]
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}
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} |