Skip to content
OpenAdvisories
Medium RLSA-2026:67162 1 CVE

Moderate: perl security update

Published Sep 15, 2026 · Updated Sep 15, 2026

Summary

Perl is a high-level programming language that is commonly used for system administration utilities and web programming.

Security Fix(es):

* perl: Perl: Incorrect regular expression processing via large regular expressions (CVE-2026-13221)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 8 perl 4:5.26.3-423.el8_10.1

Vulnerabilities 1

  • Critical 9.1

    Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.10 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk

    Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.10 produce silently incorrect regular expression matches when an alternation of more than 65535 fixed string branches is compiled into a trie in Perl_study_chunk. When suc…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2499727
  • advisory
    https://access.redhat.com/errata/RHSA-2026:67162