All errata/sisyphus/ALT-PU-2026-18664-3
ALT-PU-2026-18664-3

Package update perl-HTML-Parser in branch sisyphus

Version3.86-alt1
Published2026-10-15
Max severityHIGH
Severity:

Closed issues (1)

CVE-2026-8829
HIGH7.5

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.

Published: 2026-06-04Modified: 2026-07-22
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N