CVE-2026-8829 - HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities

CVE-2026-8829 - HTML::Entities versions before 3.84 for Perl read freed heap memory in _decode_entities

https://cvefeed.io/rssfeed/latest.atom / Thu, 06/04/2026 - 05:27
CVE ID :CVE-2026-8829
Published : June 4, 2026, 2:03 a.m. | 59 minutes ago
Description :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.
Severity: 0.0 | NA
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