Brakeman crashes while printing warning for Ruby EOL 2.6

[klazuka]

Earlier this morning we started seeing Brakeman crash with error:

gems/brakeman-5.2.0/lib/brakeman/warning.rb:251:in `sprintf': can't convert nil into Integer (TypeError)

I traced the error and found that it crashed while reporting a warning for CheckEOLRuby. The root cause appears to be that the warning symbol :pending_eol_ruby was introduced recently here in #1660, but never had a numeric code registered.

I was able to fix the problem by editing https://github.com/presidentbeef/brakeman/blob/main/lib/brakeman/warning_codes.rb to assign :pending_eol_ruby a numeric code.

[presidentbeef]

Ah, embarrassing. I'll get a fix out ASAP.

[presidentbeef]

Fixed with 5.2.1. Thanks and apologies!

[klazuka]

@presidentbeef no problem. Thanks for the quick fix!