Description
Werkzeug is a comprehensive WSGI web application library. Browsers may allow "nameless" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3.
No analysis available yet.
Remediation
No remediation available yet.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3346-1 | python-werkzeug security update |
Debian DSA |
DSA-5470-1 | python-werkzeug security update |
EUVD |
EUVD-2023-0281 | Werkzeug is a comprehensive WSGI web application library. Browsers may allow "nameless" cookies that look like `=value` instead of `key=value`. A vulnerable browser may allow a compromised application on an adjacent subdomain to exploit this to set a cookie like `=__Host-test=bad` for another subdomain. Werkzeug prior to 2.2.3 will parse the cookie `=__Host-test=bad` as __Host-test=bad`. If a Werkzeug application is running next to a vulnerable or malicious subdomain which sets such a cookie using a vulnerable browser, the Werkzeug application will see the bad cookie value but the valid cookie key. The issue is fixed in Werkzeug 2.2.3. |
Github GHSA |
GHSA-px8h-6qxv-m22q | Incorrect parsing of nameless cookies leads to __Host- cookies bypass |
Ubuntu USN |
USN-5948-1 | Werkzeug vulnerabilities |
Ubuntu USN |
USN-5948-2 | Werkzeug vulnerabilities |
References
History
Fri, 27 Jun 2025 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:ceph_storage:8.1::el9 |
Thu, 08 May 2025 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat ceph Storage
|
|
| CPEs | cpe:/a:redhat:ceph_storage:7.1::el8 | |
| Vendors & Products |
Redhat ceph Storage
|
Mon, 10 Mar 2025 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-03-10T21:11:36.910Z
Reserved: 2023-01-19T21:12:31.360Z
Link: CVE-2023-23934
Updated: 2024-08-02T10:49:07.628Z
Status : Modified
Published: 2023-02-14T20:15:17.370
Modified: 2024-11-21T07:47:07.947
Link: CVE-2023-23934
OpenCVE Enrichment
No data.
Weaknesses
Debian DLA
Debian DSA
EUVD
Github GHSA
Ubuntu USN