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CVE-2026-3277

Estado: ModificadaMedia (6.5)—

The OpenID Connect (OIDC) authentication configuration in PowerShell Universal before 2026.1.3 stores the OIDC client secret in cleartext in the .universal/authentication.ps1 script, which allows an attacker with read access to that file to obtain the OIDC client credentials

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Ironmansoftware — Powershell Universal

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-3277",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-3277",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-27T17:26:17.157053Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@devolutions.net",
      "affectedData": [
        {
          "vendor": "Devolutions",
          "product": "PowerShell Universal",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2026.1.3",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-02-27T16:16:26.260",
  "references": [
    {
      "url": "https://devolutions.net/security/advisories/DEVO-2026-0006",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@devolutions.net"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@devolutions.net",
      "description": [
        {
          "lang": "en",
          "value": "CWE-312"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The OpenID Connect (OIDC) authentication configuration in PowerShell \nUniversal before 2026.1.3 stores the OIDC client secret in cleartext in \nthe .universal/authentication.ps1 script, which allows an attacker with read access to that file to obtain the OIDC client credentials"
    },
    {
      "lang": "es",
      "value": "La configuración de autenticación de OpenID Connect (OIDC) en PowerShell Universal anterior a 2026.1.3 almacena el secreto de cliente de OIDC en texto claro en el script .universal/authentication.ps1, lo que permite a un atacante con acceso de lectura a ese archivo obtener las credenciales de cliente de OIDC."
    }
  ],
  "lastModified": "2026-06-17T10:43:19.693",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ironmansoftware:powershell_universal:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DDCF2FFB-2420-4494-9270-DAE5093BEC2B",
              "versionEndExcluding": "2026.1.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@devolutions.net"
}