NULL Pointer Dereference Affecting htacg/tidy-html5 package, versions [0,]


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-UNMANAGED-HTACGTIDYHTML5-10494071
  • published23 Jun 2025
  • disclosed23 Jun 2025
  • creditUnknown

Introduced: 23 Jun 2025

NewCVE-2025-6496  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for htacg/tidy-html5.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference via the InsertNodeAsParent function in parser.c. An attacker can cause a crash and denial of service by triggering a null pointer dereference through local access.

CVSS Base Scores

version 4.0
version 3.1