drupal/bootstrap - SA-CONTRIB-2026-236
Provides the Bootstrap front-end framework as a Drupal theme.
Bootstrap theme did not sufficiently filter certain attributes, which could lead to a cross-site scripting vulnerability.
This vulnerability is mitigated by only affecting the optional tooltip and popover features. A short-term mitigation is to disable tooltips and popovers on admin/appearance/settings/bootstrap or admin/appearance/settings/my_bootstrap_subtheme.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/bootstrap | < 3.45.0 | 3.45.0 |
| Drupal module | drupal/bootstrap | < 3.45.0 | 3.45.0 |
References
- Weakness (CWE)
-- Platform
- Composer, Drupal
- Package
drupal/bootstrap- Disclosed
- 21.10.2026
- Updated
- 22.10.2026 18:07
Sources and licenses
OSV / GitHub Advisory Database - DRUPAL-CONTRIB-2026-236 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/bootstrap
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 11.2018 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Unrated 2
Disclosures per year
- 2018: 1
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 1
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