CVE catalog
CVE-2021-33391
tidy-html5: CVE-2021-33391
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.13% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tidy-html5 | sid | 2:5.8.0-2.1 | fixed |
| Debian | tidy-html5 | forky | 2:5.8.0-2.1 | fixed |
| Debian | tidy-html5 | trixie | 2:5.8.0-2 | fixed |
| Debian | tidy-html5 | bookworm | 2:5.6.0-11 | vulnerable |
| Ubuntu | tidy-html5 | 20.04 | 2:5.6.0-10 | vulnerable |
| Ubuntu | tidy-html5 | 20.04 | 2:5.6.0-11 | vulnerable |
| Ubuntu | tidy-html5 | 20.04 | 2:5.6.0-11ubuntu0.20.04.1 | fixed |
| Ubuntu | tidy-html5 | 22.04 | 2:5.6.0-11build1 | vulnerable |
| Ubuntu | tidy-html5 | 22.04 | 2:5.6.0-11build2 | vulnerable |
| Ubuntu | tidy-html5 | 22.04 | 2:5.6.0-11ubuntu0.22.04.1 | fixed |
| Ubuntu | tidy-html5 | 18.04 | 1:5.2.0-2 | vulnerable |
| Ubuntu | tidy-html5 | 20.04 | 2:5.6.0-10 | vulnerable |
| Ubuntu | tidy-html5 | 20.04 | 2:5.6.0-11 | vulnerable |
| Ubuntu | tidy-html5 | 20.04 | 2:5.6.0-11ubuntu0.20.04.1 | fixed |
| Ubuntu | tidy-html5 | 22.04 | 2:5.6.0-11build1 | vulnerable |
| Ubuntu | tidy-html5 | 22.04 | 2:5.6.0-11build2 | vulnerable |
| Ubuntu | tidy-html5 | 22.04 | 2:5.6.0-11ubuntu0.22.04.1 | fixed |
| Ubuntu | tidy-html5 | 24.04 | 2:5.6.0-11build2 | vulnerable |
| Ubuntu | tidy-html5 | 24.04 | 2:5.6.0-11ubuntu1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tidy-html5 | source | sid | 2:5.8.0-2 | not yet assigned | Not reported | [1032665] |
| Debian | tidy-html5 | source | forky | 2:5.8.0-2 | not yet assigned | Not reported | [1032665] |
| Debian | tidy-html5 | source | trixie | 2:5.8.0-2 | not yet assigned | Not reported | [1032665] |
| Debian | tidy-html5 | source | bookworm | (unfixed) | not yet assigned | Not reported | [1032665] |
| Ubuntu | tidy-html5 | deb | 20.04 | 2:5.6.0-11ubuntu0.20.04.1 | Not reported | USN-6483-1 | Not reported |
| Ubuntu | tidy-html5 | deb | 22.04 | 2:5.6.0-11ubuntu0.22.04.1 | Not reported | USN-6483-1 | Not reported |
| Ubuntu | tidy-html5 | deb | 20.04 | 2:5.6.0-11ubuntu0.20.04.1 | Not reported | UBUNTU-CVE-2021-33391 | Not reported |
| Ubuntu | tidy-html5 | deb | 22.04 | 2:5.6.0-11ubuntu0.22.04.1 | Not reported | UBUNTU-CVE-2021-33391 | Not reported |
| Ubuntu | tidy-html5 | deb | 24.04 | 2:5.6.0-11ubuntu1 | Not reported | UBUNTU-CVE-2021-33391 | Not reported |
Notes
[bookworm] tidy-html5: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libtidy5deb1]Affected
Source package: [tidy-html5]
Details (2)
2:5.6.0-11· amd64 · bookwormAffected
dsa · tidy-html5 · debian · bookworm; dsa · tidy-html5 · debian · 12
2:5.6.0-11· arm64 · bookwormAffected
dsa · tidy-html5 · debian · bookworm; dsa · tidy-html5 · debian · 12
- [libtidy-dev]Affected
Source package: [tidy-html5]
Details (2)
2:5.6.0-11· amd64 · bookwormAffected
dsa · tidy-html5 · debian · bookworm; dsa · tidy-html5 · debian · 12
2:5.6.0-11· arm64 · bookwormAffected
dsa · tidy-html5 · debian · bookworm; dsa · tidy-html5 · debian · 12
- [tidy]Affected
Source package: [tidy-html5]
Details (2)
2:5.6.0-11· amd64 · bookwormAffected
dsa · tidy-html5 · debian · bookworm; dsa · tidy-html5 · debian · 12
2:5.6.0-11· arm64 · bookwormAffected
dsa · tidy-html5 · debian · bookworm; dsa · tidy-html5 · debian · 12
[Debian 13 (Trixie)]
- [libtidy58]Fixed
Source package: [tidy-html5]
Details (2)
2:5.8.0-2· amd64 · trixieFixed · Fixed:
2:5.8.0-2dsa · tidy-html5 · debian · 13
2:5.8.0-2· arm64 · trixieFixed · Fixed:
2:5.8.0-2dsa · tidy-html5 · debian · 13
- [libtidy-dev]Fixed
Source package: [tidy-html5]
Details (2)
2:5.8.0-2· amd64 · trixieFixed · Fixed:
2:5.8.0-2dsa · tidy-html5 · debian · 13
2:5.8.0-2· arm64 · trixieFixed · Fixed:
2:5.8.0-2dsa · tidy-html5 · debian · 13
- [tidy]Fixed
Source package: [tidy-html5]
Details (2)
2:5.8.0-2· amd64 · trixieFixed · Fixed:
2:5.8.0-2dsa · tidy-html5 · debian · 13
2:5.8.0-2· arm64 · trixieFixed · Fixed:
2:5.8.0-2dsa · tidy-html5 · debian · 13
Observed: