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CVE-2026-13346

Estado: AnalizadaMedia (5.6)—

pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.

This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time.

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)

Pypa — PIP

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-13346",
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  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-07-29T19:08:27.143201Z"
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        "type": "Secondary",
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "vendor": "Python Packaging Authority",
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          "versions": [
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  "published": "2026-07-29T19:16:44.267",
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      "url": "https://github.com/pypa/pip/pull/14110",
      "tags": [
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      ],
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    },
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      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/L2BNQGGVQCEV7DROOORQ7WFKKFF2OOQX/",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.\n\n\n\n\nThis vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone are not able to exploit this vulnerability. Note that this vulnerability only materially impacts users running `pip download` with the `--only-binary` option as installing source distributions from an untrusted index is already an unsafe operation that executes code during install time."
    }
  ],
  "lastModified": "2026-08-20T13:17:44.277",
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}