PyPI package
Flask 3.1.3: no known vulnerabilities
Flask 3.1.3 has no known vulnerabilities in OSV.dev.
PyPI (opens in a new tab) describes it as “A simple framework for building complex web applications.”
- Known vulnerabilities
- 0
- None in OSV.dev
- Released
- Feb 19, 2026
- The latest release
- Licence
- BSD-3-Clause
- Pulls in
- 6 packages
- Resolved by deps.dev
Newer releases
3.1.3 is the latest release of Flask.
Is Flask the only one?
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How this page is checked
StackPrism asks OSV.dev which advisories affect exactly Flask 3.1.3, merges duplicates filed under several ids, and ranks them with CISA’s Known Exploited Vulnerabilities list and FIRST EPSS. Release dates and deprecation come from deps.dev and PyPI. No AI writes this page: every sentence comes from that data, refreshed every few hours.