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CVE-2025-6498

Good to know:

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Date: June 22, 2025

A vulnerability classified as problematic has been found in HTACG tidy-html5 5.8.0. Affected is the function defaultAlloc of the file src/alloc.c. The manipulation leads to memory leak. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Severity Score

Related Resources (7)

https://github.com/htacg/tidy-html5/issues/1152
https://vuldb.com/?ctiid.313614
https://nvd.nist.gov/vuln/detail/CVE-2025-6498
https://github.com/user-attachments/files/20438303/tidy-html5_crash_3.txt
https://vuldb.com/?submit.601009
https://vuldb.com/?id.313614
https://www.mend.io/vulnerability-database/CVE-2025-6498

Severity Score

Weakness Type (CWE)

Improper Resource Shutdown or Release

CWE-404

Missing Release of Memory after Effective Lifetime

CWE-401

Top Fix

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Upgrade Version

Upgrade to version https://github.com/htacg/tidy-html5.git - no_fix

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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