/ 
perl-5.40.2
⭐ Starred 2013
/ t/mro/vulcan_c3_utf8.t
Security Advisories (1)
CVE-2025-40909 (2025-05-30)

Perl threads have a working directory race condition where file operations may target unintended paths. If a directory handle is open at thread creation, the process-wide current working directory is temporarily changed in order to clone that handle for the new thread, which is visible from any third (or more) thread already running. This may lead to unintended operations such as loading code or accessing files from unexpected locations, which a local attacker may be able to exploit. The bug was introduced in commit 11a11ecf4bea72b17d250cfb43c897be1341861e and released in Perl version 5.13.6

example taken from: http://www.opendylan.org/books/drm/Method_Dispatch

        옵젳Ṯ
          ^
          |
       ᓕᵮꡠＦᚖᶭ 
        ^    ^
       /      \
  SㄣチenŦ    빞엗ᱞ
     ^          ^
     |          |
ᕟ텔li겐ț  Hʉ만ӫ읻
      ^        ^
       \      /
        ቩᓪ찬

define class <SㄣチenŦ> (<ᓕᵮꡠＦᚖᶭ>) end class;
define class <빞엗ᱞ> (<ᓕᵮꡠＦᚖᶭ>) end class;
define class <ᕟ텔li겐ț> (<SㄣチenŦ>) end class;
define class <Hʉ만ӫ읻> (<빞엗ᱞ>) end class;
define class <ቩᓪ찬> (<ᕟ텔li겐ț>, <Hʉ만ӫ읻>) end class;