FKIE_CVE-2026-29954

Vulnerability from fkie_nvd - Published: 2026-03-30 17:16 - Updated: 2026-04-01 14:24
Severity ?
7.6 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
Summary
In KubePlus 4.1.4, the mutating webhook and kubeconfiggenerator components have an SSRF vulnerability when processing the chartURL field of ResourceComposition resources. The field is only URL-encoded without validating the target address. More critically, when kubeconfiggenerator uses wget to download charts, the chartURL is directly concatenated into the command, allowing attackers to inject wget's `--header` option to achieve arbitrary HTTP header injection.
References
cve@mitre.orghttps://gist.github.com/b0b0haha/33baea60fd2a847f11f1fb02e43c64c0
cve@mitre.orghttps://github.com/b0b0haha/CVE-2026-29954/blob/main/README.md
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In KubePlus 4.1.4, the mutating webhook and kubeconfiggenerator components have an SSRF vulnerability when processing the chartURL field of ResourceComposition resources. The field is only URL-encoded without validating the target address. More critically, when kubeconfiggenerator uses wget to download charts, the chartURL is directly concatenated into the command, allowing attackers to inject wget\u0027s `--header` option to achieve arbitrary HTTP header injection."
    },
    {
      "lang": "es",
      "value": "En KubePlus 4.1.4, los componentes mutating webhook y kubeconfiggenerator tienen una vulnerabilidad SSRF al procesar el campo chartURL de los recursos ResourceComposition. El campo solo est\u00e1 codificado en URL sin validar la direcci\u00f3n de destino. M\u00e1s cr\u00edticamente, cuando kubeconfiggenerator utiliza wget para descargar charts, la chartURL se concatena directamente en el comando, permitiendo a los atacantes inyectar la opci\u00f3n --header de wget para lograr la inyecci\u00f3n arbitraria de encabezados HTTP."
    }
  ],
  "id": "CVE-2026-29954",
  "lastModified": "2026-04-01T14:24:21.833",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 4.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-30T17:16:15.867",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "https://gist.github.com/b0b0haha/33baea60fd2a847f11f1fb02e43c64c0"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/b0b0haha/CVE-2026-29954/blob/main/README.md"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-88"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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