cve-2026-123853

HIGH CVSS 7.8 unknown

Description

In JetBrains IntelliJ IDEA before 2026.3, 2026.2.2 code execution was possible in Safe Mode via project-controlled JVM options of the build process

Timeline

Published: 2026-11-06 16:10 UTC
Last Modified: 2026-11-07

CVSS Details

Attack Vector: LOCAL
Attack Complexity: LOW
Privileges Required: NONE

Affected Products

JetBrains IntelliJ IDEA

Weaknesses (CWE)

CWE-829

SSVC (CISA Stakeholder-Specific Vulnerability Categorization) CISA Coordinator v2.0.3

Exploitation: none
Automatable: no
Technical Impact: total
Decision timestamp: 2026-11-06T00:00:00+00:00

What is SSVC? — CISA's vulnerability-prioritisation framework using a decision tree rather than a single score.

References

https://www.jetbrains.com/privacy-security/issues-fixed/

Linked Vulnerabilities

No linked vulnerabilities found.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-123853",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-11-06T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-11-07T04:55:45.076Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "IntelliJ IDEA",
          "vendor": "JetBrains",
          "versions": [
            {
              "lessThan": "2026.3, \n2026.2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In JetBrains IntelliJ IDEA before 2026.3, \n2026.2.2 code execution was possible in Safe Mode via project-controlled JVM options of the build process"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-829",
              "description": "CWE-829",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T16:10:11.334Z",
        "orgId": "547ada31-17d8-4964-bc5f-1b8238ba8014",
        "shortName": "JetBrains"
      },
      "references": [
        {
          "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
        }
      ],
      "x_gcve": [
        {
          "recordType": "advisory",
          "vulnId": "CVE-2026-123853"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "547ada31-17d8-4964-bc5f-1b8238ba8014",
    "assignerShortName": "JetBrains",
    "cveId": "CVE-2026-123853",
    "datePublished": "2026-11-06T16:10:11.334Z",
    "dateReserved": "2026-11-06T16:05:47.402Z",
    "dateUpdated": "2026-11-07T04:55:45.076Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-123853\",\"sourceIdentifier\":\"cve@jetbrains.com\",\"published\":\"2026-11-06T17:17:24.430\",\"lastModified\":\"2026-11-06T20:20:05.730\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In JetBrains IntelliJ IDEA before 2026.3, \\n2026.2.2 code execution was possible in Safe Mode via project-controlled JVM options of the build process\"}],\"affected\":[{\"source\":\"cve@jetbrains.com\",\"affectedData\":[{\"vendor\":\"JetBrains\",\"product\":\"IntelliJ IDEA\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"2026.3, \\n2026.2.2\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@jetbrains.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-11-06T16:41:09.926595Z\",\"id\":\"CVE-2026-123853\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cve@jetbrains.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-829\"}]}],\"references\":[{\"url\":\"https://www.jetbrains.com/privacy-security/issues-fixed/\",\"source\":\"cve@jetbrains.com\"}]}}"
  },
  "x_gcve": [
    {
      "extensions": {
        "bcp-05-x-01": {
          "ai_annotations": [
            {
              "ai_level": "generated",
              "description": "VLAI severity classification was generated by Vulnerability-Lookup's /vlai/severity-classification API endpoint based on vulnerability description text.",
              "field_name": "x_gcve.extensions.vlai-severity-enrichment",
              "models": [
                {
                  "gna_source": 1,
                  "identifier": "vlai-severity-classification",
                  "name": "VLAI Severity",
                  "provider": "CIRCL",
                  "version": "fc530b2263ef5a89ae4c75ffcbf6b4d878d44b94"
                }
              ],
              "review_status": "none",
              "scope": "field",
              "tags": [
                "ai-computer-assisted:assistance-level=\"ai-generated\"",
                "ai-computer-assisted:review-level=\"unreviewed\""
              ]
            }
          ]
        },
        "vlai-severity-enrichment": {
          "confidence": 0.8027779459953308,
          "generated_at": "2026-11-07T05:27:39+00:00",
          "severity": "High",
          "vulnerability_id": "CVE-2026-123853"
        }
      }
    }
  ]
}

cve-2026-123853

Raw JSON Data