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Inefficient Regular Expression Complexity

CVE-2022-41323

Severity High
Score 7.5/10

Summary

In Django versions 3.2.x prior to 3.2.16, 4.0.x prior to 4.0.8, and 4.1.x prior to 4.1.2, internationalized URLs were subject to a potential denial of service attack via the locale parameter, which is treated as a regular expression.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-1333 - Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

Advisory Timeline

  • Published