FKIE_CVE-2026-59862

Vulnerability from fkie_nvd - Published: 2026-07-16 15:16 - Updated: 2026-10-24 20:10
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.0, Kiota's Python generator let attacker-controlled enum value descriptions from x-ms-enum.values[].description flow through KiotaBuilder.SetEnumOptions into Documentation.DescriptionTemplate and PythonConventionService.RemoveInvalidDescriptionCharacters without newline sanitization, allowing generated inline comments to split and execute attacker-controlled Python code at module scope when generated modules were imported. This issue is fixed in version 1.29.1 and 1.32.0.
References
security-advisories@github.comhttps://github.com/microsoft/kiota/releases/tag/v1.32.0
security-advisories@github.comhttps://github.com/microsoft/kiota/security/advisories/GHSA-7f3j-j7jj-r3vr
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "kiota",
          "vendor": "microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.30.0, \u003c 1.31.1"
            },
            {
              "status": "affected",
              "version": "\u003c 1.29.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kiota is an OpenAPI based HTTP Client code generator. Prior to 1.29.1 and 1.32.0, Kiota\u0027s Python generator let attacker-controlled enum value descriptions from x-ms-enum.values[].description flow through KiotaBuilder.SetEnumOptions into Documentation.DescriptionTemplate and PythonConventionService.RemoveInvalidDescriptionCharacters without newline sanitization, allowing generated inline comments to split and execute attacker-controlled Python code at module scope when generated modules were imported. This issue is fixed in version 1.29.1 and 1.32.0."
    },
    {
      "lang": "es",
      "value": "Kiota es un generador de c\u00f3digo de cliente HTTP basado en OpenAPI. Antes de la versi\u00f3n 1.32.0, el generador de Python de Kiota permit\u00eda que las descripciones de valores enumerados controladas por el atacante de x-ms-enum.values[].description fluyeran a trav\u00e9s de KiotaBuilder.SetEnumOptions hacia Documentation.DescriptionTemplate y PythonConventionService.RemoveInvalidDescriptionCharacters sin saneamiento de nueva l\u00ednea, permitiendo que los comentarios en l\u00ednea generados se dividieran y ejecutaran c\u00f3digo Python controlado por el atacante en el \u00e1mbito del m\u00f3dulo cuando se importaban los m\u00f3dulos generados. Este problema est\u00e1 solucionado en la versi\u00f3n 1.32.0."
    }
  ],
  "id": "CVE-2026-59862",
  "lastModified": "2026-10-24T20:10:00.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-59862",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-17T03:56:36.677843Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-16T15:16:35.570",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/microsoft/kiota/releases/tag/v1.32.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/microsoft/kiota/security/advisories/GHSA-7f3j-j7jj-r3vr"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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