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OpenAdvisories

Weakness (CWE)

CWE-407: Inefficient Algorithmic Complexity

Class Incomplete

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

Source: MITRE CWE-407

All Critical High Medium Low Exploited only Public exploit

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  • High 7.5
    CVE-2025-64458 Public exploit

    Potential denial-of-service vulnerability in HttpResponseRedirect and HttpResponsePermanentRedirect on Windows

    An issue was discovered in 5.1 before 5.1.14, 4.2 before 4.2.26, and 5.2 before 5.2.8. NFKC normalization in Python is slow on Windows. As a consequence, `django.http.HttpResponseRedirect`, `django.http.HttpResponsePermanentRedirect`, and the shortcut `django…

    djangoproject Django django py3-django Alpine PyPI
  • High 7.5
    CVE-2025-62727 Public exploit

    Starlette vulnerable to O(n^2) DoS via Range header merging in starlette.responses.FileResponse

    Starlette is a lightweight ASGI framework/toolkit. Starting in version 0.39.0 and prior to version 0.49.1 , an unauthenticated attacker can send a crafted HTTP Range header that triggers quadratic-time processing in Starlette's FileResponse Range parsing/merg…

    Kludex starlette starlette starlette Debian Ubuntu PyPI
  • High 8.0
    CVE-2023-46136 Public exploit

    Werkzeug vulnerable to high resource usage when parsing multipart/form-data containing a large part with CR/LF character at the beginning

    Werkzeug is a comprehensive WSGI web application library. In versions on the 3.x branch prior to 3.0.1 and on the 2.x branch prior to 2.3.8, if an upload of a file that starts with CR or LF and then is followed by megabytes of data without these characters: a…

    pallets werkzeug werkzeug python-werkzeug Debian Alpine PyPI