Description
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HTACG | tidy-html5 | 5.8.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tidy-html5 | No fix yet | — |
| Debian 13 | tidy-html5 | No fix yet | — |
| Debian 12 | tidy-html5 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | tidy-html5 | No fix yet | — |
| Ubuntu 26.04 LTS | tidy-html5 | No fix yet | — |
| Ubuntu 25.10 | tidy-html5 | No fix yet | — |
| Ubuntu 24.04 LTS | tidy-html5 | No fix yet | — |
| Ubuntu 22.04 LTS | tidy-html5 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | tidy-html5 | No fix yet | — |
| Ubuntu 18.04 LTS | tidy-html5 | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | tidy | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | tidy | No fix yet | — |
References
- VDB-313613 | HTACG tidy-html5 parser.c prvTidyParseNamespace assertion vdb-entry technical-description
- VDB-313613 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #601008 | htacg tidy-html5 tidy-html5 5.8.0 (commit d08ddc2) Reachable Assertion third-party-advisory
- https://github.com/htacg/tidy-html5/issues/1142 issue-tracking
- https://github.com/user-attachments/files/19825297/tidy-html5_crash_2.txt exploit