Vulnerability-Lookup

FKIE_CVE-2025-8869

Vulnerability from fkie_nvd - Published: 2025-09-24 15:15 - Updated: 2026-09-26 00:10

Severity

5.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

When extracting a tar archive pip may not check symbolic links point into the extraction directory if the tarfile module doesn't implement PEP 706. Note that upgrading pip to a "fixed" version for this vulnerability doesn't fix all known vulnerabilities that are remediated by using a Python version that implements PEP 706. Note that this is a vulnerability in pip's fallback implementation of tar extraction for Python versions that don't implement PEP 706 and therefore are not secure to all vulnerabilities in the Python 'tarfile' module. If you're using a Python version that implements PEP 706 then pip doesn't use the "vulnerable" fallback code. Mitigations include upgrading to a version of pip that includes the fix, upgrading to a Python version that implements PEP 706 (Python >=3.9.17, >=3.10.12, >=3.11.4, or >=3.12), applying the linked patch, or inspecting source distributions (sdists) before installation as is already a best-practice.

References

	URL	Tags
	cna@python.org	https://github.com/pypa/pip/pull/13550
	cna@python.org	https://mail.python.org/archives/list/security-announce@python.org/thread/IF5A3GCJY3VH7BVHJKOWOJFKTW7VFQEN/
	af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00028.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pypi.org/project/pip",
          "defaultStatus": "unaffected",
          "packageName": "pip",
          "product": "pip",
          "repo": "https://github.com/pypa/pip",
          "vendor": "Python Packaging Authority",
          "versions": [
            {
              "lessThan": "25.3",
              "status": "affected",
              "version": "0",
              "versionType": "python"
            }
          ]
        }
      ],
      "source": "cna@python.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When extracting a tar archive pip may not check symbolic links point into the extraction directory if the tarfile module doesn\u0027t implement PEP 706.\nNote that upgrading pip to a \"fixed\" version for this vulnerability doesn\u0027t fix all known vulnerabilities that are remediated by using a Python version that implements PEP 706.\n\nNote that this is a vulnerability in pip\u0027s fallback implementation of tar extraction for Python versions that don\u0027t implement PEP 706\nand therefore are not secure to all vulnerabilities in the Python \u0027tarfile\u0027 module. If you\u0027re using a Python version that implements PEP 706\nthen pip doesn\u0027t use the \"vulnerable\" fallback code.\n\nMitigations include upgrading to a version of pip that includes the fix, upgrading to a Python version that implements PEP 706 (Python \u003e=3.9.17, \u003e=3.10.12, \u003e=3.11.4, or \u003e=3.12),\napplying the linked patch, or inspecting source distributions (sdists) before installation as is already a best-practice."
    },
    {
      "lang": "es",
      "value": "Al extraer un archivo tar, pip podr\u00eda no verificar que los enlaces simb\u00f3licos apunten al directorio de extracci\u00f3n si el m\u00f3dulo tarfile no implementa PEP 706.\nTenga en cuenta que actualizar pip a una versi\u00f3n \u201ccorregida\u201d para esta vulnerabilidad no corrige todas las vulnerabilidades conocidas que se remedian usando una versi\u00f3n de Python que implementa PEP 706.\n\nTenga en cuenta que esta es una vulnerabilidad en la implementaci\u00f3n de reserva de pip para la extracci\u00f3n de tar para versiones de Python que no implementan PEP 706 y, por lo tanto, no son seguras frente a todas las vulnerabilidades en el m\u00f3dulo \u0027tarfile\u0027 de Python. Si est\u00e1 utilizando una versi\u00f3n de Python que implementa PEP 706, entonces pip no utiliza el c\u00f3digo de reserva \u201cvulnerable\u201d.\n\nLas mitigaciones incluyen actualizar a una versi\u00f3n de pip que incluya la correcci\u00f3n, actualizar a una versi\u00f3n de Python que implemente PEP 706 (Python \u003e=3.9.17, \u003e=3.10.12, \u003e=3.11.4, o \u003e=3.12), aplicar el parche vinculado, o inspeccionar las distribuciones de origen (sdists) antes de la instalaci\u00f3n, como ya es una buena pr\u00e1ctica."
    }
  ],
  "id": "CVE-2025-8869",
  "lastModified": "2026-09-26T00:10:00.127",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@python.org",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-8869",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-16T19:47:29.080800Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-24T15:15:41.293",
  "references": [
    {
      "source": "cna@python.org",
      "url": "https://github.com/pypa/pip/pull/13550"
    },
    {
      "source": "cna@python.org",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/IF5A3GCJY3VH7BVHJKOWOJFKTW7VFQEN/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00028.html"
    }
  ],
  "sourceIdentifier": "cna@python.org",
  "vulnStatus": "Deferred"
}

CVE-2025-8869 (GCVE-0-2025-8869)

Vulnerability from cvelistv5 – Published: 2025-09-24 14:56 – Updated: 2025-11-03 17:45

Title

Fallback tar extraction in pip doesn't check symbolic links point to extraction directory

Summary

Severity

5.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-16 19:47 UTC

CWE

CWE-noinfo Not enough information

Assigner

PSF mitre root Scorecard

References

3 references

URL	Tags
https://github.com/pypa/pip/pull/13550	patch
https://mail.python.org/archives/list/security-an…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

1 product

Vendor	Product	Version
Python Packaging Authority	pip	Affected: 0 , < 25.3 (python)

Show details on NVD website

JSON

To clipboard

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        "metrics": [
          {
            "other": {
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                "id": "CVE-2025-8869",
                "options": [
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2025-10-16T19:47:29.080800Z",
                "version": "2.0.3"
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        "providerMetadata": {
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        "references": [
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            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00028.html"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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        {
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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FKIE_CVE-2025-8869

CVE-2025-8869 (GCVE-0-2025-8869)

Tags

Sightings

Nomenclature

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