CVE-2025-6496

LOW

HTACG tidy-html5 5.8.0 - Use After Free

Title source: llm
STIX 2.1

Description

A vulnerability was found in HTACG tidy-html5 5.8.0. It has been declared as problematic. This vulnerability affects the function InsertNodeAsParent of the file src/parser.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

Scores

CVSS v3 3.3
EPSS 0.0007
EPSS Percentile 21.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404 CWE-476
Status published
Products (1)
HTACG/tidy-html5 5.8.0
Published Jun 23, 2025
Tracked Since Feb 18, 2026