ToolJet 3.20.2-lts before 3.20.242-lts Signup Bypass via SignupDisableGuard

{
  "id": "d95f3f105488aa42970f7de92e2f7c14830ca388b18f8916e1814c7d61830266",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-118685",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ToolJet 3.20.2-lts before 3.20.242-lts Signup Bypass via SignupDisableGuard",
    "summary": "ToolJet from 3.20.2-lts before 3.20.242-lts contains an authorization bypass in SignupDisableGuard, which treats the string signup setting 'false' as truthy, so instance-level signup restrictions are not enforced. Unauthenticated attackers can send POST requests to /api/signup without an organizationId to create an account, join the default workspace, and receive a valid session.",
    "evidence": "cve:CVE-2026-118685",
    "products": [
      {
        "name": {
          "value": "ToolJet",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-118685",
      "aliases": [
        "CVE-2026-118685"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 6.9,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "NONE",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "LOW",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 6.5,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "integrityImpact": "LOW",
            "userInteraction": "NONE",
            "attackComplexity": "LOW",
            "availabilityImpact": "NONE",
            "privilegesRequired": "NONE",
            "confidentialityImpact": "LOW"
          }
        }
      ],
      "affected": [
        {
          "vendor": "ToolJet",
          "product": "ToolJet",
          "versions": [
            {
              "status": "affected",
              "version": "3.20.2-lts",
              "lessThan": "3.20.242-lts",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "3.20.242-lts",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-28T18:59:54.863Z",
      "provider": "cve",
      "references": [
        "https://github.com/ToolJet/ToolJet/security/advisories/GHSA-gwr6-mv6v-23f2",
        "https://www.vulncheck.com/advisories/tooljet-3.20.2-lts-before-3.20.242-lts-signup-bypass-via-signupdisableguard"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-28T18:59:54.863Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-118685",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 477118,
  "published_at": "2026-10-28T18:59:54.863+00:00"
}