htacg 関連製品全体の CVE とセキュリティ脆弱性情報を集約し、CVSS、EPSS、公開日、脆弱性情報データを掲載しています。
公開された問題は バッファオーバーフロー、vendor risk memory corruption, and vendor risk input validation に関連することが多く、vendor surface software deployment and vendor surface production workloads の文脈で アプリケーションクラッシュ and vendor impact memory corruption などの暴露リスクを伴う場合があります。
掲載データは公開脆弱性情報とセキュリティ公告に基づき、過去の暴露面と修補優先度の評価に利用できます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2025-6498 | 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. | [email protected] | 1.9 | 0.19% | 2025-06-23 | 2026-04-29 |
| CVE-2021-33391 | An issue in HTACG HTML Tidy v5.7.28 allows attacker to execute arbitrary code via the -g option of the CleanNode() function in gdoc.c. | [email protected] | 9.8 | 1.13% | 2023-02-17 | 2025-03-18 |
| CVE-2017-17497 | In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (Segmentation Fault), because the currentNode variable in the "children of the head" processing feature is modified in the loop without validating the new value. | [email protected] | 7.5 | 1.38% | 2017-12-10 | 2026-05-13 |
| CVE-2017-13692 | In Tidy 5.5.31, the IsURLCodePoint function in attrs.c allows attackers to cause a denial of service (Segmentation Fault), as demonstrated by an invalid ISALNUM argument. | [email protected] | 7.5 | 1.15% | 2017-08-25 | 2026-05-13 |
| CVE-2015-5523 | The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving multiple whitespace characters before an empty href, which triggers a large memory allocation. | [email protected] | 4.3 | 3.84% | 2015-08-11 | 2026-05-06 |
| CVE-2015-5522 | Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving a command character in an href. | [email protected] | 6.8 | 4.66% | 2015-08-11 | 2026-05-06 |