188 lines
7.5 KiB
JSON
188 lines
7.5 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-2026-58057",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-06-28T00:55:25.426Z",
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"datePublished": "2026-06-28T01:32:58.594Z",
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"dateUpdated": "2026-11-08T14:06:43.889Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-11-08T14:06:43.889Z"
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},
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"datePublic": "2026-06-03T00:00:00.000Z",
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"title": "Flowise - Custom MCP Environment Variable Denylist Bypass via Case Sensitivity",
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"descriptions": [
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{
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"lang": "en",
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"value": "Flowise before 3.1.3 validates Custom MCP stdio environment variables against a denylist using a case-sensitive comparison, so on Windows, where environment names are case-insensitive, supplying 'node_options' bypasses the NODE_OPTIONS denylist entry. An authenticated user who can configure a Custom MCP node can thereby inject NODE_OPTIONS --require and execute arbitrary code in the Flowise server context."
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "Improper Handling of Case Sensitivity",
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"cweId": "CWE-178",
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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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"affected": [
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{
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"vendor": "Flowise",
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"product": "Flowise",
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"defaultStatus": "unaffected",
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"packageURL": "pkg:npm/flowise",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "3.1.3"
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},
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{
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"version": "3.1.3",
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"status": "unaffected",
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"versionType": "semver"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "3.1.3"
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}
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]
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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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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"availabilityImpact": "LOW",
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"baseScore": 5,
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"baseSeverity": "MEDIUM"
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}
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},
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "LOW",
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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": 2.3,
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"baseSeverity": "LOW"
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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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"url": "https://github.com/bikini/exploitarium/tree/main/flowise-mcp-env-case-bypass-poc",
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"name": "Proof of Concept",
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"tags": [
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"exploit",
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"third-party-advisory"
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]
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},
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{
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"url": "https://github.com/FlowiseAI/Flowise/pull/6471",
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"name": "Fix (PR #6471, 3.1.3)",
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"tags": [
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"issue-tracking",
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"patch"
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]
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},
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{
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"name": "VulnCheck Advisory: Flowise - Custom MCP Environment Variable Denylist Bypass via Case Sensitivity",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/flowise-custom-mcp-environment-variable-denylist-bypass-via-case-sensitivity"
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "ashdfrkl",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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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": "2026-06-29T12:23:43.023783Z",
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"id": "CVE-2026-58057",
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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": "2026-06-29T12:25:16.778Z"
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}
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}
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]
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}
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} |