fix: CWE-23 detected by Snyk in apply_spec_filters

[xiangce]

• RHINENG-14792, RHINENG-14796

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.04%. Comparing base (c530404) to head (6daa698).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4339      +/-   ##
==========================================
+ Coverage   77.03%   77.04%   +0.01%     
==========================================
  Files         736      736              
  Lines       41369    41376       +7     
  Branches     8789     8790       +1     
==========================================
+ Hits        31869    31879      +10     
+ Misses       8438     8436       -2     
+ Partials     1062     1061       -1     

Flag	Coverage Δ
unittests	77.03% <100.00%> (+0.01%)	⬆️

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