CVE catalog
CVE-2016-9910
html5lib: CVE-2016-9910
- Severity
- Medium · CVSS 6.1
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.16% · Oct 25, 2026
The serializer in html5lib before 0.99999999 might allow remote attackers to conduct cross-site scripting (XSS) attacks by leveraging mishandling of special characters in attribute values, a different vulnerability than CVE-2016-9909.
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 | html5lib | sid | 1.2-5 | fixed |
| Debian | html5lib | forky | 1.2-5 | fixed |
| Debian | html5lib | trixie | 1.2-2 | fixed |
| Debian | html5lib | bookworm | 1.1-3 | fixed |
| Ubuntu | html5lib | 16.04 | 0.999-3build1 | vulnerable |
| Ubuntu | html5lib | 16.04 | 0.999-4 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | html5lib | source | sid | 0.999999999-1 | not yet assigned | Not reported | Not reported |
| Debian | html5lib | source | forky | 0.999999999-1 | not yet assigned | Not reported | Not reported |
| Debian | html5lib | source | trixie | 0.999999999-1 | not yet assigned | Not reported | Not reported |
| Debian | html5lib | source | bookworm | 0.999999999-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-html5lib]Fixed
Source package: [html5lib]
Details (2)
1.1-3· all · bookwormFixed · Fixed:
0.999999999-1dsa · html5lib · debian · bookworm; dsa · html5lib · debian · 12
1.1-3· all · bookwormFixed · Fixed:
0.999999999-1dsa · html5lib · debian · bookworm; dsa · html5lib · debian · 12
[Debian 13 (Trixie)]
- [python3-html5lib]Fixed
Source package: [html5lib]
Details (2)
1.2-2· all · trixieFixed · Fixed:
0.999999999-1dsa · html5lib · debian · 13
1.2-2· all · trixieFixed · Fixed:
0.999999999-1dsa · html5lib · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-9910]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-9910]
- [https://security-tracker.debian.org/tracker/CVE-2016-9910]
- [https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-9910.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]