PT-2025-26576 · Htacg+1 · Tidy-Html5+1

Jjleo · Published 2025-06-23 · Updated 2025-06-23 · CVE-2025-6498

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: HTACG tidy-html5 version 5.8.0

Description: A memory leak issue has been discovered, affecting the defaultAlloc function in the src/alloc.c file. This issue can be exploited locally, potentially leading to memory leak. The exploit details have been publicly disclosed.

Recommendations: For HTACG tidy-html5 version 5.8.0, consider restricting access to the defaultAlloc function in the src/alloc.c file as a temporary mitigation measure until a patch is available.

Exploit

Fix

Improper Resource Release

Memory Leak

Weakness Enumeration

CWE-404

CWE-401

Related Identifiers

AZL-64314

AZL-64320

CVE-2025-6498

Affected Products

Debian

Tidy-Html5

References · 18

• 🔥 https://github.com/htacg/tidy-html5/issues/1152 · Exploit
• 🔥❌ https://github.com/user-attachments/files/20438303/tidy-html5_crash_3.txt · Exploit, Deleted
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-6498 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-6498 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-6498 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-6498 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-6498 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-6498 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-6498 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-64314 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-64320 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1936979075945402860 · Twitter Post
• https://twitter.com/transilienceai/status/1937124276982935745 · Twitter Post
• https://vuldb.com/?ctiid.313614 · Note
• https://twitter.com/CVEnew/status/1936984200776728658 · Twitter Post