# libxslt1.1 security updates

Patch Radar has 24 security fixes for libxslt1.1, closing 12 CVEs. The newest is libxslt1.1 1.1.39-0exp1ubuntu4 (1.1.39-0exp1ubuntu4), released January 16, 2026.

- Web page: https://patchblox.com/security/product/linux/libxslt1.1
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libxslt1.1 1.1.39-0exp1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libxslt1.1-1.1.39-0exp1ubuntu4.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 1.1.39-0exp1ubuntu4 | High | 1 | 0 |
| [libxslt1.1 1.1.39-0exp1ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libxslt1.1-1.1.39-0exp1ubuntu1.2.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 1.1.39-0exp1ubuntu1.2 | High | 1 | 0 |
| [libxslt1.1 1.1.43-0.3](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libxslt1.1-1.1.43-0.3.md) | Oct 13, 2025 | Ubuntu 26.04.1 LTS (resolute) 1.1.43-0.3 | Routine | 2 | 0 |
| [libxslt1.1 1.1.29-5ubuntu0.3+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxslt1.1-1.1.29-5ubuntu0.3-esm3.md) | Jul 10, 2025 | Ubuntu 18.04.6 LTS (bionic) 1.1.29-5ubuntu0.3+esm3 | High | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.20.04.3+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxslt1.1-1.1.34-4ubuntu0.20.04.3-esm2.md) | Jul 10, 2025 | Ubuntu 20.04 LTS (focal) 1.1.34-4ubuntu0.20.04.3+esm2 | High | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.22.04.5](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxslt1.1-1.1.34-4ubuntu0.22.04.5.md) | Jul 10, 2025 | Ubuntu 22.04.1 LTS (jammy) 1.1.34-4ubuntu0.22.04.5 | High | 1 | 0 |
| [libxslt1.1 1.1.39-0exp1ubuntu0.24.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libxslt1.1-1.1.39-0exp1ubuntu0.24.04.3.md) | Jul 10, 2025 | Ubuntu 24.04.5 LTS (noble) 1.1.39-0exp1ubuntu0.24.04.3 | High | 1 | 0 |
| [libxslt1.1 1.1.39-0exp1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libxslt1.1-1.1.39-0exp1ubuntu1.1.md) | Mar 14, 2025 | Ubuntu 24.10 (oracular) 1.1.39-0exp1ubuntu1.1 | High | 1 | 0 |
| [libxslt1.1 1.1.39-0exp1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libxslt1.1-1.1.39-0exp1ubuntu3.md) | Mar 14, 2025 | Ubuntu 25.04 (plucky) 1.1.39-0exp1ubuntu3 | High | 1 | 0 |
| [libxslt1.1 1.1.29-5ubuntu0.3+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxslt1.1-1.1.29-5ubuntu0.3-esm2.md) | Mar 13, 2025 | Ubuntu 18.04.6 LTS (bionic) 1.1.29-5ubuntu0.3+esm2 | High | 2 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxslt1.1-1.1.34-4ubuntu0.20.04.3.md) | Mar 13, 2025 | Ubuntu 20.04 LTS (focal) 1.1.34-4ubuntu0.20.04.3 | High | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.22.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxslt1.1-1.1.34-4ubuntu0.22.04.3.md) | Mar 13, 2025 | Ubuntu 22.04.1 LTS (jammy) 1.1.34-4ubuntu0.22.04.3 | High | 1 | 0 |
| [libxslt1.1 1.1.39-0exp1ubuntu0.24.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libxslt1.1-1.1.39-0exp1ubuntu0.24.04.2.md) | Mar 13, 2025 | Ubuntu 24.04.5 LTS (noble) 1.1.39-0exp1ubuntu0.24.04.2 | High | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxslt1.1-1.1.34-4ubuntu0.20.04.2.md) | Mar 13, 2025 | Ubuntu 20.04 LTS (focal) 1.1.34-4ubuntu0.20.04.2 | High | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.22.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxslt1.1-1.1.34-4ubuntu0.22.04.2.md) | Mar 13, 2025 | Ubuntu 22.04.1 LTS (jammy) 1.1.34-4ubuntu0.22.04.2 | High | 1 | 0 |
| [libxslt1.1 1.1.39-0exp1ubuntu0.24.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libxslt1.1-1.1.39-0exp1ubuntu0.24.04.1.md) | Mar 13, 2025 | Ubuntu 24.04.5 LTS (noble) 1.1.39-0exp1ubuntu0.24.04.1 | High | 1 | 0 |
| [libxslt1.1 1.1.29-5ubuntu0.3+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxslt1.1-1.1.29-5ubuntu0.3-esm1.md) | Sep 27, 2023 | Ubuntu 18.04.6 LTS (bionic) 1.1.29-5ubuntu0.3+esm1 | Routine | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.20.04.3+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxslt1.1-1.1.34-4ubuntu0.20.04.3-esm1.md) | Sep 27, 2023 | Ubuntu 20.04 LTS (focal) 1.1.34-4ubuntu0.20.04.3+esm1 | Routine | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxslt1.1-1.1.34-4ubuntu0.22.04.4.md) | Sep 27, 2023 | Ubuntu 22.04.1 LTS (jammy) 1.1.34-4ubuntu0.22.04.4 | Routine | 1 | 0 |
| [libxslt1.1 1.1.29-5ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxslt1.1-1.1.29-5ubuntu0.3.md) | Aug 3, 2021 | Ubuntu 18.04.6 LTS (bionic) 1.1.29-5ubuntu0.3 | Routine | 2 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libxslt1.1-1.1.34-4ubuntu0.20.04.1.md) | Aug 3, 2021 | Ubuntu 20.04 LTS (focal) 1.1.34-4ubuntu0.20.04.1 | Routine | 1 | 0 |
| [libxslt1.1 1.1.34-4ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libxslt1.1-1.1.34-4ubuntu0.22.04.1.md) | Aug 3, 2021 | Ubuntu 22.04.1 LTS (jammy) 1.1.34-4ubuntu0.22.04.1 | Routine | 1 | 0 |
| [libxslt1.1 1.1.29-5ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxslt1.1-1.1.29-5ubuntu0.2.md) | Oct 18, 2019 | Ubuntu 18.04.6 LTS (bionic) 1.1.29-5ubuntu0.2 | High | 3 | 0 |
| [libxslt1.1 1.1.29-5ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libxslt1.1-1.1.29-5ubuntu0.1.md) | Apr 9, 2019 | Ubuntu 18.04.6 LTS (bionic) 1.1.29-5ubuntu0.1 | High | 1 | 0 |

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Data as of 2026-11-07T06:34:28Z 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