All vulnerabilities

Servers and applications

CVE-2020-10735

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.

Severity
High 7.5
Published
9 Sept 2022
Last changed
14 Oct 2026
Added to UpHeron
21 Oct 2026
Fixed in
3.7.14, 3.8.14, 3.9.14, 3.10.7
Sources
NVD

Affected software

SoftwareAffected versions
PythonServers and applications · cpe:a:python:python
  • Version 3.11.0-rc1
  • Version 3.11.0-beta5
  • Version 3.11.0-beta4
  • Version 3.11.0-beta3
All 17 release lines
  • From 3.7.0 before 3.7.14
  • From 3.8.0 before 3.8.14
  • From 3.9.0 before 3.9.14
  • From 3.10.0 before 3.10.7
  • Version 3.11.0-alpha1
  • Version 3.11.0-alpha2
  • Version 3.11.0-alpha3
  • Version 3.11.0-alpha4
  • Version 3.11.0-alpha5
  • Version 3.11.0-alpha6
  • Version 3.11.0-alpha7
  • Version 3.11.0-beta1
  • Version 3.11.0-beta2
  • Version 3.11.0-beta3
  • Version 3.11.0-beta4
  • Version 3.11.0-beta5
  • Version 3.11.0-rc1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-10735
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-10735