CVE-2025-6075 (GCVE-0-2025-6075)

Vulnerability from cvelistv5 – Published: 2025-10-31 16:41 – Updated: 2026-07-31 14:01
VLAI
Title
Quadratic complexity in os.path.expandvars() with user-controlled template
Summary
If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-31 17:54 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
Impacted products
Vendor Product Version CPE status
Python Software Foundation CPython Affected: 0 , < 3.9.25 (python)
Affected: 3.10.0 , < 3.10.20 (python)
Affected: 3.11.0 , < 3.11.15 (python)
Affected: 3.12.0 , < 3.12.13 (python)
Affected: 3.13.0 , < 3.13.10 (python)
Affected: 3.14.0 , < 3.14.1 (python)
Affected: 3.15.0a1 , < 3.15.0a2 (python)
    cpe:2.3:a:python_software_foundation:cpython:*:*:*:*:*:*:*:*
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                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "LOW",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
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                  "lang": "en",
                  "value": "GENERAL"
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              ]
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              "url": "https://github.com/python/cpython/issues/136065"
            },
            {
              "tags": [
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          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Quadratic complexity in os.path.expandvars() with user-controlled template",
          "x_generator": {
            "engine": "Vulnogram 0.4.0"
          }
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      },
      "cveMetadata": {
        "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
        "assignerShortName": "PSF",
        "cveId": "CVE-2025-6075",
        "datePublished": "2025-10-31T16:41:34.983Z",
        "dateReserved": "2025-06-13T15:05:20.139Z",
        "dateUpdated": "2026-07-31T14:01:32.417Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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