CVE-2025-6498 Details
Description
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.
A memory leak vulnerability has been identified in HTACG Tidy-HTML5 version 5.8.0. The issue arises in the 'defaultAlloc' function within 'src/alloc.c', where the program fails to properly manage and release allocated memory. This flaw can be exploited locally, leading to a gradual consumption of available memory and causing a denial-of-service condition.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 23, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/htacg/tidy-html5/issues/1152 | CISA-ADP | ExploitIssue Tracking |
| https://github.com/htacg/tidy-html5/issues/1152 | [email protected] | ExploitIssue Tracking |
| https://github.com/user-attachments/files/20438303/tidy-html5_crash_3.txt | [email protected] | Exploit |
| https://vuldb.com/?ctiid.313614 | [email protected] | Permissions RequiredVDB Entry |
| https://vuldb.com/?id.313614 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/?submit.601009 | [email protected] | Third Party AdvisoryVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| htacg tidy | 5.8.0 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Sep 30, 2025 | Initial Analysis | [email protected] |
| Jun 23, 2025 | CVE Modified | CISA-ADP |
| Jun 23, 2025 | New CVE Received | [email protected] |