Thanks!
Quotes (emphasis by me)
zlib, the compression library (also known as libz, deflate, compress on various systems) has a major flaw.
It even has a backdated CVE, because the bug was discovered years ago, but not fixed:
To clarify: the latest zlib version 1.2.12 as of March 27th 2022 is fixed according to https://zlib.net/.

In reply to Re: Possible security problem in CPAN modules / CVE-2018-25032 by hexcoder
in thread Possible security problem in CPAN modules / CVE-2018-25032 by cavac

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