CVE-2026-69263

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the mitigation for CVE-2025-8943 blocked -y and --yes flags on npx, but packages/components/nodes/tools/MCP/core.ts denied only PATH, LD_LIBRARY_PATH, DYLD_LIBRARY_PATH, and NODE_OPTIONS by exact environment-variable name. Because npm reads configuration from npm_config_* variables, setting npm_config_yes=true reproduced --yes behavior without using a blocked flag, causing npx to auto-install and execute the named package when a Custom MCP server launched. This issue is fixed in version 3.1.3.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 8.7 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Effective score: 8.7 / 10 HIGH source: CNA overview
CWE(s): CWE-184
Reserved: 2026-08-03
Published: 2026-08-04 16:54 UTC
Last updated: 2026-08-04 17:20 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/69xxx/CVE-2026-69263.json
Linked Threat: CVE-2026-69263 — Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)

Affected products (1)

Vendor	Product	Versions	Platforms
FlowiseAI	Flowise	`< 3.1.3` (affected)	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xc48-889x-5qmw x_refsource_CONFIRM
https://github.com/FlowiseAI/Flowise/pull/6471 x_refsource_MISC
https://github.com/FlowiseAI/Flowise/commit/a4c4e4988cded15edf725e762560575b889ae351 x_refsource_MISC
https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 x_refsource_MISC

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-69263.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-69263",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-04T17:20:09.751060Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-04T17:20:39.789Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xc48-889x-5qmw"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Flowise",
          "vendor": "FlowiseAI",
          "versions": [
            {
              "status": "affected",
              "version": "< 3.1.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the mitigation for CVE-2025-8943 blocked -y and --yes flags on npx, but packages/components/nodes/tools/MCP/core.ts denied only PATH, LD_LIBRARY_PATH, DYLD_LIBRARY_PATH, and NODE_OPTIONS by exact environment-variable name. Because npm reads configuration from npm_config_* variables, setting npm_config_yes=true reproduced --yes behavior without using a blocked flag, causing npx to auto-install and execute the named package when a Custom MCP server launched. This issue is fixed in version 3.1.3."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-184",
              "description": "CWE-184: Incomplete List of Disallowed Inputs",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-04T16:54:36.893Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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      "references": [
        {
          "name": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xc48-889x-5qmw",
          "tags": [
            "x_refsource_CONFIRM"
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          "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xc48-889x-5qmw"
        },
        {
          "name": "https://github.com/FlowiseAI/Flowise/pull/6471",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/FlowiseAI/Flowise/pull/6471"
        },
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          "name": "https://github.com/FlowiseAI/Flowise/commit/a4c4e4988cded15edf725e762560575b889ae351",
          "tags": [
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          "url": "https://github.com/FlowiseAI/Flowise/commit/a4c4e4988cded15edf725e762560575b889ae351"
        },
        {
          "name": "https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3"
        }
      ],
      "source": {
        "advisory": "GHSA-xc48-889x-5qmw",
        "discovery": "UNKNOWN"
      },
      "title": "Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)"
    }
  },
  "cveMetadata": {
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    "datePublished": "2026-08-04T16:54:36.893Z",
    "dateReserved": "2026-08-03T19:54:19.853Z",
    "dateUpdated": "2026-08-04T17:20:39.789Z",
    "state": "PUBLISHED"
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}