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CVE-2020-10735

7.5 high SSVC exploitation: none Modified
NVD · CVE.org

A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · python, redhat, fedoraprojectNVD modified 2026-10-14 09:17

Affected (CPE criteria) 20

  • cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha1:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha2:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha3:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha4:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha5:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha6:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:alpha7:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta3:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta4:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:beta5:*:*:*:*:*:*
  • cpe:2.3:a:python:python:3.11.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

References 58