{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C66E65F5-D68D-43EC-B26B-7680565AA1DD",
              "versionEndExcluding": "2.3.8",
              "versionStartIncluding": "1.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1484B22D-EA09-40C2-B943-0EEAB8D2FA99",
              "versionEndExcluding": "3.1.0",
              "versionStartIncluding": "3.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. Prior to 3.1.0 and 2.3.8, the himmelblaud-tasks daemon, running as root, writes Kerberos cache files under /tmp/krb5cc_\u003cuid\u003e without symlink protections. Since commit 87a51ee, PrivateTmp is explicitly removed from the tasks daemon\u0027s systemd hardening, exposing it to the host /tmp. A local user can exploit this via symlink attacks to chown or overwrite arbitrary files, achieving local privilege escalation. This vulnerability is fixed in 3.1.0 and 2.3.8."
    },
    {
      "lang": "es",
      "value": "Himmelblau es una suite de interoperabilidad para Microsoft Azure Entra ID e Intune. Antes de las versiones 3.1.0 y 2.3.8, el demonio himmelblaud-tasks, ejecut\u00e1ndose como root, escribe archivos de cach\u00e9 de Kerberos bajo /tmp/krb5cc_ sin protecciones de enlaces simb\u00f3licos. Desde el commit 87a51ee, PrivateTmp se elimina expl\u00edcitamente del endurecimiento de systemd del demonio de tareas, exponi\u00e9ndolo al /tmp del host. Un usuario local puede explotar esto mediante ataques de enlaces simb\u00f3licos para cambiar el propietario (chown) o sobrescribir archivos arbitrarios, logrando una escalada de privilegios local. Esta vulnerabilidad est\u00e1 corregida en las versiones 3.1.0 y 2.3.8."
    }
  ],
  "id": "CVE-2026-31979",
  "lastModified": "2026-03-16T18:18:34.750",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-11T20:16:17.607",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-44wm-q286-ghq3"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}