python311-Flask-3.1.1-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2025:16214 Final 1 1 2025-05-23T00:00:00Z current 2025-05-23T00:00:00Z 2025-05-23T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z python311-Flask-3.1.1-1.1 on GA media These are all security issues fixed in the python311-Flask-3.1.1-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2025-16214 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2025-47278/ SUSE CVE CVE-2025-47278 page openSUSE Tumbleweed python311-Flask-3.1.1-1.1 python311-Flask-doc-3.1.1-1.1 python312-Flask-3.1.1-1.1 python312-Flask-doc-3.1.1-1.1 python313-Flask-3.1.1-1.1 python313-Flask-doc-3.1.1-1.1 python311-Flask-3.1.1-1.1 as a component of openSUSE Tumbleweed python311-Flask-doc-3.1.1-1.1 as a component of openSUSE Tumbleweed python312-Flask-3.1.1-1.1 as a component of openSUSE Tumbleweed python312-Flask-doc-3.1.1-1.1 as a component of openSUSE Tumbleweed python313-Flask-3.1.1-1.1 as a component of openSUSE Tumbleweed python313-Flask-doc-3.1.1-1.1 as a component of openSUSE Tumbleweed Flask is a web server gateway interface (WSGI) web application framework. In Flask 3.1.0, the way fallback key configuration was handled resulted in the last fallback key being used for signing, rather than the current signing key. Signing is provided by the `itsdangerous` library. A list of keys can be passed, and it expects the last (top) key in the list to be the most recent key, and uses that for signing. Flask was incorrectly constructing that list in reverse, passing the signing key first. Sites that have opted-in to use key rotation by setting `SECRET_KEY_FALLBACKS` care likely to unexpectedly be signing their sessions with stale keys, and their transition to fresher keys will be impeded. Sessions are still signed, so this would not cause any sort of data integrity loss. Version 3.1.1 contains a patch for the issue. CVE-2025-47278 openSUSE Tumbleweed:python311-Flask-3.1.1-1.1 openSUSE Tumbleweed:python311-Flask-doc-3.1.1-1.1 openSUSE Tumbleweed:python312-Flask-3.1.1-1.1 openSUSE Tumbleweed:python312-Flask-doc-3.1.1-1.1 openSUSE Tumbleweed:python313-Flask-3.1.1-1.1 openSUSE Tumbleweed:python313-Flask-doc-3.1.1-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-47278.html CVE-2025-47278 https://bugzilla.suse.com/1243163 SUSE Bug 1243163