# libpython3.9-stdlib security updates

Patch Radar has 12 security fixes for libpython3.9-stdlib, closing 37 CVEs. The newest is libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm11 (3.9.5-3ubuntu0~20.04.1+esm11), released July 9, 2026.

- Web page: https://patchblox.com/security/product/linux/libpython3.9-stdlib
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm11](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm11.md) | Jul 9, 2026 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm11 | High | 4 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm9](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm9.md) | Jan 20, 2026 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm9 | High | 6 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm8](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm8.md) | Dec 1, 2025 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm8 | High | 1 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm7.md) | Oct 31, 2025 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm7 | Routine | 2 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm6.md) | Jul 28, 2025 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm6 | High | 2 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm5](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm5.md) | May 15, 2025 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm5 | Routine | 2 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm4.md) | Jan 31, 2025 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm4 | Routine | 1 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm3.md) | Nov 12, 2024 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm3 | High | 3 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm2.md) | Mar 19, 2024 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm2 | High | 3 | 0 |
| [libpython3.9-stdlib 3.9.5-3~20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3-20.04.1.md) | Aug 22, 2023 | Ubuntu 20.04 LTS (focal) 3.9.5-3~20.04.1 | High | 6 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1-esm1.md) | Feb 17, 2023 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1+esm1 | High | 6 | 0 |
| [libpython3.9-stdlib 3.9.5-3ubuntu0~20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libpython3.9-stdlib-3.9.5-3ubuntu0-20.04.1.md) | Aug 30, 2021 | Ubuntu 20.04 LTS (focal) 3.9.5-3ubuntu0~20.04.1 | High | 1 | 0 |

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Data as of 2026-11-06T17:00:54Z 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