# libnss-sudo security updates

Patch Radar has 13 security fixes for libnss-sudo, closing 8 CVEs, 1 of which is being exploited. The newest security fix is libnss-sudo 1.9.15p5-3ubuntu5.24.04.4, released October 8, 2026.

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

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libnss-sudo 1.9.15p5-3ubuntu5.24.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-sudo-1.9.15p5-3ubuntu5.24.04.4.md) | Oct 8, 2026 | Ubuntu 24.04.5 LTS (noble) 1.9.15p5-3ubuntu5.24.04.4 | High | 1 | 0 |
| [libnss-sudo 1.9.15p5-3ubuntu5.24.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-sudo-1.9.15p5-3ubuntu5.24.04.3.md) | Sep 23, 2026 | Ubuntu 24.04.5 LTS (noble) 1.9.15p5-3ubuntu5.24.04.3 | High | 1 | 0 |
| [libnss-sudo 1.9.17p2-1ubuntu3.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnss-sudo-1.9.17p2-1ubuntu3.2.md) | Sep 23, 2026 | Ubuntu 26.04.1 LTS (resolute) 1.9.17p2-1ubuntu3.2 | High | 1 | 0 |
| [libnss-sudo 1.9.17p2-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnss-sudo-1.9.17p2-1ubuntu3.1.md) | Aug 29, 2026 | Ubuntu 26.04.1 LTS (resolute) 1.9.17p2-1ubuntu3.1 | High | 1 | 0 |
| [libnss-sudo 1.9.17p2-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libnss-sudo-1.9.17p2-1ubuntu1.1.md) | Apr 15, 2026 | Ubuntu 25.10 (questing) 1.9.17p2-1ubuntu1.1 | High | 1 | 0 |
| [libnss-sudo 1.9.15p5-3ubuntu5.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-sudo-1.9.15p5-3ubuntu5.24.04.2.md) | Apr 15, 2026 | Ubuntu 24.04.5 LTS (noble) 1.9.15p5-3ubuntu5.24.04.2 | High | 1 | 0 |
| [libnss-sudo 1.9.16p2-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-sudo-1.9.16p2-1ubuntu1.1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 1.9.16p2-1ubuntu1.1 | Patch now | 2 | 1 |
| [libnss-sudo 1.9.15p5-3ubuntu5.24.10.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-sudo-1.9.15p5-3ubuntu5.24.10.1.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 1.9.15p5-3ubuntu5.24.10.1 | Patch now | 2 | 1 |
| [libnss-sudo 1.9.4p2-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-sudo-1.9.4p2-2ubuntu2.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 1.9.4p2-2ubuntu2 | Routine | 1 | 0 |
| [libnss-sudo 1.9.13p1-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-sudo-1.9.13p1-1ubuntu2.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 1.9.13p1-1ubuntu2 | Routine | 2 | 0 |
| [libnss-sudo 1.9.13p1-1ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-sudo-1.9.13p1-1ubuntu2.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 1.9.13p1-1ubuntu2 | Routine | 2 | 0 |
| [libnss-sudo 1.9.4p2-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-sudo-1.9.4p2-2ubuntu2.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 1.9.4p2-2ubuntu2 | Routine | 1 | 0 |
| [libnss-sudo 1.9.15p5-3ubuntu5.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-sudo-1.9.15p5-3ubuntu5.24.04.1.md) | Jun 30, 2025 | Ubuntu 24.04.5 LTS (noble) 1.9.15p5-3ubuntu5.24.04.1 | Patch now | 2 | 1 |

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Data as of 2026-11-07T12:40:37Z 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

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