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CVE-2026-82827

Status: ReceivedCritical (9.3)—

Hitachi Coding Software Suite contains a vulnerability related to Use of Hard-coded Cryptographic Key. The Hardcoding of JWT signing secret key allows an attacker to generate unauthorized Bearer tokens and exploit administrative functions.

This issue affects Hitachi Coding Software Suite: through 3.3.0.

CVSS

Exploitation probability (EPSS)

FIRST hasn't scored this CVE yet (usual for very recent or rejected CVEs).

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Hitachi — Coding Software SuiteAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-82827",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "hirt@hitachi.co.jp",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "hirt@hitachi.co.jp",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "hirt@hitachi.co.jp",
      "affectedData": [
        {
          "vendor": "Hitachi Industrial Equipment Systems",
          "product": "Hitachi Coding Software Suite",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "4.0.0",
                  "status": "unaffected"
                }
              ],
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "3.3.0"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-10-01T05:17:10.780",
  "references": [
    {
      "url": "https://www.hitachi-ies.com/common/documents/vulnerability/hcss/Hitachi_Coding_Software_Suite_Public_statement_20260925_EN.pdf",
      "source": "hirt@hitachi.co.jp"
    }
  ],
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "hirt@hitachi.co.jp",
      "description": [
        {
          "lang": "en",
          "value": "CWE-321"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Hitachi Coding Software Suite contains a vulnerability related to Use of Hard-coded Cryptographic Key. The Hardcoding of JWT signing secret key allows an attacker to generate unauthorized Bearer tokens and exploit administrative functions.\n\n\nThis issue affects Hitachi Coding Software Suite: through 3.3.0."
    }
  ],
  "lastModified": "2026-10-01T05:17:10.780",
  "sourceIdentifier": "hirt@hitachi.co.jp"
}