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Low ALAS2-2026-3357 1 CVE

Low: perl-HTML-Parser security update (Amazon Linux 2)

Published Jun 22, 2026 · Updated Jun 22, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-8829: HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities. The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV was identical to a value SV in that hash, and that value contained its own key as an entity reference, a later call to grow_gap() reallocated the SV's PV buffer and freed the backing allocation that repl still pointed into. The subsequent copy loop read repl_len bytes from the freed allocation. The read may disclose adjacent heap contents into the destination SV.

Fixed packages 2

ReleasePackageFixed in
Amazon Linux · 2 perl-HTML-Parser 0:3.71-4.amzn2.0.3
Amazon Linux · 2 perl-HTML-Parser-debuginfo 0:3.71-4.amzn2.0.3

Vulnerabilities 1

  • High 7.5

    HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities

    HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities. The XS routine backing HTML::Entities::_decode_entities cached a pointer (repl) into the entity-value SV returned by hv_fetch on the entity2char hash. When the input SV w…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-8829.html