Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-07-14 08:55

Modified

2026-07-14 09:10

Summary

setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+

Details

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "setuptools",
        "purl": "pkg:bitnami/setuptools"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "83.0.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-59890"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:python:setuptools:*:*:*:*:*:python:*:*"
    ],
    "severity": "Medium"
  },
  "details": "setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0.",
  "id": "BIT-setuptools-2026-59890",
  "modified": "2026-07-14T09:10:57.073Z",
  "published": "2026-07-14T08:55:22.983Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pypa/setuptools/commit/dd9f436a36486b4cb8a4c70a2321548b0be09b8f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/setuptools/releases/tag/v83.0.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-59890"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+"
}

CVE-2026-59890 (GCVE-0-2026-59890)

Vulnerability from cvelistv5 – Published: 2026-07-08 16:02 – Updated: 2026-07-08 16:44

Title

setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+

Summary

Severity

6.1 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-176 - Improper Handling of Unicode Encoding
CWE-697 - Incorrect Comparison

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/pypa/setuptools/security/advis…	x_refsource_CONFIRM
https://github.com/pypa/setuptools/commit/dd9f436…	x_refsource_MISC
https://github.com/pypa/setuptools/releases/tag/v83.0.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
pypa	setuptools	Affected: < 83.0.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-59890",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-08T16:44:32.194805Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-08T16:44:52.269Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "setuptools",
          "vendor": "pypa",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 83.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. Prior to 83.0.0, FileList applied MANIFEST.in exclude, global-exclude, recursive-exclude, and prune directives by matching compiled glob patterns against on-disk file names without Unicode normalization, so on macOS APFS or HFS+ an NFD file name could bypass an NFC exclusion rule and be packed into a source distribution. This issue is fixed in version 83.0.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-176",
              "description": "CWE-176: Improper Handling of Unicode Encoding",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-697",
              "description": "CWE-697: Incorrect Comparison",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-08T16:02:07.519Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pypa/setuptools/security/advisories/GHSA-h35f-9h28-mq5c"
        },
        {
          "name": "https://github.com/pypa/setuptools/commit/dd9f436a36486b4cb8a4c70a2321548b0be09b8f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pypa/setuptools/commit/dd9f436a36486b4cb8a4c70a2321548b0be09b8f"
        },
        {
          "name": "https://github.com/pypa/setuptools/releases/tag/v83.0.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pypa/setuptools/releases/tag/v83.0.0"
        }
      ],
      "source": {
        "advisory": "GHSA-h35f-9h28-mq5c",
        "discovery": "UNKNOWN"
      },
      "title": "setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59890",
    "datePublished": "2026-07-08T16:02:07.519Z",
    "dateReserved": "2026-07-07T16:40:07.983Z",
    "dateUpdated": "2026-07-08T16:44:52.269Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2026-59890 (GCVE-0-2026-59890)

Tags

Sightings

Nomenclature