Description
Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.
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 | python-werkzeug | 0.11.9+dfsg1-1 | — |
| Debian 13 | python-werkzeug | 0.11.9+dfsg1-1 | — |
| Debian 12 | python-werkzeug | 0.11.9+dfsg1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | python-werkzeug | 0.14.1+dfsg1-1ubuntu0.1 | USN-4655-1 |
| Ubuntu 16.04 LTS | python-werkzeug | 0.10.4+dfsg1-1ubuntu1.2 | USN-4655-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | werkzeug | < 0.11.6 | 0.11.6 | GHSA-3p3h-qghp-hvh2 |
Advisories 1
- USN-4655-1 python-werkzeug vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026