Description
The bluemonday sanitizer before 1.0.16 for Go, and before 0.0.8 for Python (in pybluemonday), does not properly enforce policies associated with the SELECT, STYLE, and OPTION elements.
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 | golang-github-microcosm-cc-bluemonday | 1.0.16-1 | — |
| Debian 13 | golang-github-microcosm-cc-bluemonday | 1.0.16-1 | — |
| Debian 12 | golang-github-microcosm-cc-bluemonday | 1.0.16-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | golang-github-microcosm-cc-bluemonday | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/microcosm-cc/bluemonday | < 1.0.16 | 1.0.16 | GHSA-x95h-979x-cf3j |
| PyPI | pybluemonday | < 0.0.8 | 0.0.8 | PYSEC-2021-849 |
Advisories 1
- WID-SEC-2026-4090 Oracle Communications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026