Wrkzeug's incorrect parsing of nameless cookies leads to __Host- cookies bypass
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| pallets | werkzeug | affected |
|
| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat Ceph Storage 7.1 | |||
| ceph-2:18.2.1-329.el9cp | cpe:/a:redhat:ceph_storage:7.1::el8 | RHSA-2025:4664 | 2025-05-07T00:00:00Z |
| oath-toolkit-0:2.6.12-1.el8cp | cpe:/a:redhat:ceph_storage:7.1::el8 | RHSA-2025:4664 | 2025-05-07T00:00:00Z |
| Red Hat Ceph Storage 8.1 | |||
| ceph-2:19.2.1-222.el9cp | cpe:/a:redhat:ceph_storage:8.1::el9 | RHSA-2025:9775 | 2025-06-26T00:00:00Z |
| cephadm-ansible-1:4.1.4-1.el9cp | cpe:/a:redhat:ceph_storage:8.1::el9 | RHSA-2025:9775 | 2025-06-26T00:00:00Z |
| oath-toolkit-0:2.6.12-1.el9cp | cpe:/a:redhat:ceph_storage:8.1::el9 | RHSA-2025:9775 | 2025-06-26T00:00:00Z |
| Red Hat OpenStack Platform 17.0 | |||
| python-werkzeug-0:2.0.1-5.el9ost | cpe:/a:redhat:openstack:17.0::el9 | RHSA-2023:1018 | 2023-02-28T00:00:00Z |
No data available yet.
| 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 |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.507% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:ceph_storage:8.1::el9 |
| 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
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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