ALAS2023-2023-149

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. (CVE-2023-23934)

noarch:
    python3-werkzeug-1.0.1-5.amzn2023.0.4.noarch
    python3-werkzeug-doc-1.0.1-5.amzn2023.0.4.noarch

src:
    python-werkzeug-1.0.1-5.amzn2023.0.4.src