Detections
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Echo: libhtml-parser-perl: security update to 3.83-1+e1

high Tenable Self-Hosted Container Security Plugin ID 457452

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-8829)

Solution

Update the libhtml-parser-perl library and its related packages to version 3.83-1+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-8829

Plugin Details

Severity: High

ID: 457452

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.77

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-8829

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/4/2026

Vulnerability Publication Date: 6/4/2026

Reference Information

CVE: CVE-2026-8829