# flask security updates

Patch Radar has 8 security fixes for flask, closing 3 CVEs. The newest is DEBIAN-CVE-2026-27205 (3.1.1-1+deb13u1), released February 21, 2026.

- Web page: https://patchblox.com/security/product/linux/flask
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [DEBIAN-CVE-2026-27205](https://patchblox.com/security/data/fix/linux/debian-cve-2026-27205.md) | Feb 21, 2026 | Debian 13.5 (trixie) 3.1.1-1+deb13u1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2026-27205](https://patchblox.com/security/data/fix/linux/debian-cve-2026-27205.md) | Feb 21, 2026 | Debian 14 3.1.3-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2025-47278](https://patchblox.com/security/data/fix/linux/debian-cve-2025-47278.md) | May 13, 2025 | Debian 13.5 (trixie) 3.1.1-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2025-47278](https://patchblox.com/security/data/fix/linux/debian-cve-2025-47278.md) | May 13, 2025 | Debian 14 3.1.1-1 | Routine | 1 | 0 |
| [DSA-5442-1](https://patchblox.com/security/data/fix/linux/dsa-5442-1.md) | Jun 29, 2023 | Debian 11.6 (bullseye) 1.1.2-2+deb11u1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-30861](https://patchblox.com/security/data/fix/linux/debian-cve-2023-30861.md) | May 2, 2023 | Debian 12.15 (bookworm) 2.2.2-3 | High | 1 | 0 |
| [DEBIAN-CVE-2023-30861](https://patchblox.com/security/data/fix/linux/debian-cve-2023-30861.md) | May 2, 2023 | Debian 13.5 (trixie) 2.2.2-3 | High | 1 | 0 |
| [DEBIAN-CVE-2023-30861](https://patchblox.com/security/data/fix/linux/debian-cve-2023-30861.md) | May 2, 2023 | Debian 14 2.2.2-3 | High | 1 | 0 |

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Data as of 2026-11-07T00:32:44Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo