CVE-2026-23949

{
  "id": "CVE-2026-23949",
  "cveTags": [],
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        "ssvcData": {
          "id": "CVE-2026-23949",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-20T17:02:42.295346Z"
        }
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    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 4,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
        {
          "vendor": "jaraco",
          "product": "jaraco.context",
          "versions": [
            {
              "status": "affected",
              "version": ">= 5.2.0, < 6.1.0"
            }
          ]
        }
      ]
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  "published": "2026-01-20T01:15:57.723",
  "references": [
    {
      "url": "https://github.com/jaraco/jaraco.context/blob/main/jaraco/context/__init__.py#L74-L91",
      "tags": [
        "Patch"
      ],
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    {
      "url": "https://github.com/jaraco/jaraco.context/commit/7b26a42b525735e4085d2e994e13802ea339d5f9",
      "tags": [
        "Patch"
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      "url": "https://github.com/jaraco/jaraco.context/security/advisories/GHSA-58pv-8j8x-9vj2",
      "tags": [
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    {
      "url": "https://github.com/pypa/setuptools/blob/main/setuptools/_vendor/jaraco/context.py#L55-L76",
      "tags": [
        "Patch"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "jaraco.context, an open-source software package that provides some useful decorators and context managers, has a Zip Slip path traversal vulnerability in the `jaraco.context.tarball()` function starting in version 5.2.0 and prior to version 6.1.0. The vulnerability may allow attackers to extract files outside the intended extraction directory when malicious tar archives are processed. The strip_first_component filter splits the path on the first `/` and extracts the second component, while allowing `../` sequences. Paths like `dummy_dir/../../etc/passwd` become `../../etc/passwd`. Note that this suffers from a nested tarball attack as well with multi-level tar files such as `dummy_dir/inner.tar.gz`, where the inner.tar.gz includes a traversal `dummy_dir/../../config/.env` that also gets translated to `../../config/.env`. Version 6.1.0 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "jaraco.context, un paquete de software de código abierto que proporciona algunos decoradores y gestores de contexto útiles, tiene una vulnerabilidad de recorrido de ruta Zip Slip en la función `jaraco.context.tarball()` a partir de la versión 5.2.0 y anterior a la versión 6.1.0. La vulnerabilidad puede permitir a los atacantes extraer archivos fuera del directorio de extracción previsto cuando se procesan archivos tar maliciosos. El filtro strip_first_component divide la ruta en la primera barra «/» y extrae el segundo componente, al tiempo que permite secuencias «../». Las rutas como «dummy_dir/../../etc /passwd» se convierten en «../../etc /passwd». Tenga en cuenta que esto también sufre un ataque de archivo tar anidado con archivos tar de varios niveles, como `dummy_dir/inner.tar.gz`, donde inner.tar.gz incluye un recorrido `dummy_dir/../../config/.env` que también se traduce a `../../config/.env`. La versión 6.1.0 contiene un parche para el problema."
    }
  ],
  "lastModified": "2026-06-17T10:22:20.200",
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