Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2025-08-11 14:00

Modified

2026-02-11 09:09

Summary

Tarfile infinite loop during parsing with negative member offset

Details

This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "python",
        "purl": "pkg:bitnami/python"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.9.24"
            },
            {
              "introduced": "3.10.0"
            },
            {
              "fixed": "3.10.19"
            },
            {
              "introduced": "3.11.0"
            },
            {
              "fixed": "3.11.14"
            },
            {
              "introduced": "3.12.0"
            },
            {
              "fixed": "3.12.12"
            },
            {
              "introduced": "3.13.0"
            },
            {
              "fixed": "3.13.6"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-8194"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "There is a defect in the CPython \u201ctarfile\u201d module affecting the \u201cTarFile\u201d extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. \n\nThis vulnerability can be mitigated by including the following patch after importing the \u201ctarfile\u201d module:\u00a0 https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1",
  "id": "BIT-python-2025-8194",
  "modified": "2026-02-11T09:09:18.507Z",
  "published": "2025-08-11T14:00:02.142Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/7040aa54f14676938970e10c5f74ea93cd56aa38"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/c9d9f78feb1467e73fd29356c040bde1c104f29f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/cdae923ffe187d6ef916c0f665a31249619193fe"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/fbc2a0ca9ac8aff6887f8ddf79b87b4510277227"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/130577"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/137027"
    },
    {
      "type": "WEB",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/ZULLF3IZ726XP5EY7XJ7YIN3K5MDYR2D/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8194"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/57f5981d6260ed21266e0c26951b8564cc252bc2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/73f03e4808206f71eb6b92c579505a220942ef19"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/b4ec17488eedec36d3c05fec127df71c0071f6cb"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/07/28/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/07/28/2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/57f5981d6260ed21266e0c26951b8564cc252bc2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/73f03e4808206f71eb6b92c579505a220942ef19"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/b4ec17488eedec36d3c05fec127df71c0071f6cb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/c9d9f78feb1467e73fd29356c040bde1c104f29f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/cdae923ffe187d6ef916c0f665a31249619193fe"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/fbc2a0ca9ac8aff6887f8ddf79b87b4510277227"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Tarfile infinite loop during parsing with negative member offset"
}

CVE-2025-8194 (GCVE-0-2025-8194)

Vulnerability from cvelistv5 – Published: 2025-07-28 18:42 – Updated: 2026-07-31 14:01

Title

Tarfile infinite loop during parsing with negative member offset

Summary

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives. This vulnerability can be mitigated by including the following patch after importing the “tarfile” module: https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-28 18:57 UTC

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

PSF CNA under the mitre root

CNA scorecard B 80/100 over 32 records in the last 180 days details

References

13 references

URL	Tags
https://github.com/python/cpython/issues/130577	issue-tracking
https://github.com/python/cpython/pull/137027	patch
https://mail.python.org/archives/list/security-an…	vendor-advisory
https://github.com/python/cpython/commit/7040aa54…	patch
https://github.com/python/cpython/commit/cdae923f…	patch
https://gist.github.com/sethmlarson/1716ac5b82b73…	mitigation
https://github.com/python/cpython/commit/c9d9f78f…	patch
https://github.com/python/cpython/commit/fbc2a0ca…	patch
https://github.com/python/cpython/commit/57f5981d…	patch
https://github.com/python/cpython/commit/73f03e48…	patch
https://github.com/python/cpython/commit/b4ec1748…	patch
http://www.openwall.com/lists/oss-security/2025/07/28/1
http://www.openwall.com/lists/oss-security/2025/07/28/2

Impacted products

1 product

Vendor	Product	Version
Python Software Foundation	CPython	Affected: 0 , < 3.9.24 (python) Affected: 3.10.0 , < 3.10.19 (python) Affected: 3.11.0 , < 3.11.14 (python) Affected: 3.12.0 , < 3.12.12 (python) Affected: 3.13.0 , < 3.13.6 (python) Affected: 3.14.0a1 , < 3.14.0rc2 (python)

Credits

Alexander Urieles Seth Larson Ethan Furman Steve Dower

Show details on NVD website

JSON

To clipboard

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerability from bitnami_vulndb

CVE-2025-8194 (GCVE-0-2025-8194)

Tags

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