- Latest release
- Not known: cve.now hasn't read this package's releases
- Newest unaffected release
- Not known without release data
- Advisories
- 5 · 1 high, 2 low
- Registry
- PyPI
Advisories 5
- CVE-2026-27205Low 2.3
Flask session does not add `Vary: Cookie` header when accessed in some ways
Affected: fixed in 3.1.3.
- CVE-2025-47278Low 1.8
Flask uses fallback key instead of current signing key
Affected: from 3.1.0, fixed in 3.1.1.
- CVE-2023-30861High 7.5
Flask vulnerable to possible disclosure of permanent session cookie due to missing Vary: Cookie header
Affected: fixed in 2.2.5; from 2.3.0, fixed in 2.3.2; from 2.3.0, fixed in 2.3.2; fixed in 2.2.5.
- CVE-2019-1010083Unrated
The Pallets Project Flask before 1.0 is affected by: unexpected memory usage.
Affected: fixed in 1.0.
- CVE-2018-1000656Unrated
The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in…
Affected: fixed in 0.12.3.