# mosquitto security updates

Patch Radar has 37 security fixes for mosquitto, closing 16 CVEs. The newest security fix is OPENSUSE-SU-2026:20260-1 (2.0.23-bp160.1.1), released February 23, 2026.

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

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [OPENSUSE-SU-2026:20260-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20260-1.md) | Feb 23, 2026 | opensuse-leap 16.0 2.0.23-bp160.1.1 | Urgent | 2 | 0 |
| [DLA-4059-1](https://patchblox.com/security/data/fix/linux/dla-4059-1.md) | Feb 20, 2025 | Debian 11.6 (bullseye) 2.0.11-1+deb11u2 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2024-3935](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3935.md) | Oct 30, 2024 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u2 | Routine | 1 | 0 |
| [DEBIAN-CVE-2024-3935](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3935.md) | Oct 30, 2024 | Debian 13.5 (trixie) 2.0.20-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2024-3935](https://patchblox.com/security/data/fix/linux/debian-cve-2024-3935.md) | Oct 30, 2024 | Debian 14 2.0.20-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2024-10525](https://patchblox.com/security/data/fix/linux/debian-cve-2024-10525.md) | Oct 30, 2024 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u2 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2024-10525](https://patchblox.com/security/data/fix/linux/debian-cve-2024-10525.md) | Oct 30, 2024 | Debian 13.5 (trixie) 2.0.20-1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2024-10525](https://patchblox.com/security/data/fix/linux/debian-cve-2024-10525.md) | Oct 30, 2024 | Debian 14 2.0.20-1 | Urgent | 1 | 0 |
| [mosquitto 2.0.11-1ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mosquitto-2.0.11-1ubuntu1.2.md) | Oct 30, 2024 | Ubuntu 22.04.1 LTS (jammy) 2.0.11-1ubuntu1.2 | Urgent | 2 | 0 |
| [mosquitto 2.0.18-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-mosquitto-2.0.18-1ubuntu0.1-esm1.md) | Oct 30, 2024 | Ubuntu 24.04.5 LTS (noble) 2.0.18-1ubuntu0.1~esm1 | Urgent | 2 | 0 |
| [mosquitto 1.4.15-2ubuntu0.18.04.3+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mosquitto-1.4.15-2ubuntu0.18.04.3-esm2.md) | Oct 30, 2024 | Ubuntu 18.04.6 LTS (bionic) 1.4.15-2ubuntu0.18.04.3+esm2 | Urgent | 1 | 0 |
| [mosquitto 1.6.9-1ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mosquitto-1.6.9-1ubuntu0.1-esm2.md) | Oct 30, 2024 | Ubuntu 20.04 LTS (focal) 1.6.9-1ubuntu0.1~esm2 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2024-8376](https://patchblox.com/security/data/fix/linux/debian-cve-2024-8376.md) | Oct 11, 2024 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u2 | High | 1 | 0 |
| [DEBIAN-CVE-2024-8376](https://patchblox.com/security/data/fix/linux/debian-cve-2024-8376.md) | Oct 11, 2024 | Debian 13.5 (trixie) 2.0.20-1 | High | 1 | 0 |
| [DEBIAN-CVE-2024-8376](https://patchblox.com/security/data/fix/linux/debian-cve-2024-8376.md) | Oct 11, 2024 | Debian 14 2.0.20-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-5632](https://patchblox.com/security/data/fix/linux/debian-cve-2023-5632.md) | Oct 18, 2023 | Debian 12.15 (bookworm) 2.0.7-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-5632](https://patchblox.com/security/data/fix/linux/debian-cve-2023-5632.md) | Oct 18, 2023 | Debian 13.5 (trixie) 2.0.7-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-5632](https://patchblox.com/security/data/fix/linux/debian-cve-2023-5632.md) | Oct 18, 2023 | Debian 14 2.0.7-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-3592](https://patchblox.com/security/data/fix/linux/debian-cve-2023-3592.md) | Oct 2, 2023 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-3592](https://patchblox.com/security/data/fix/linux/debian-cve-2023-3592.md) | Oct 2, 2023 | Debian 13.5 (trixie) 2.0.17-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-3592](https://patchblox.com/security/data/fix/linux/debian-cve-2023-3592.md) | Oct 2, 2023 | Debian 14 2.0.17-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-0809](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0809.md) | Oct 2, 2023 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2023-0809](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0809.md) | Oct 2, 2023 | Debian 13.5 (trixie) 2.0.17-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2023-0809](https://patchblox.com/security/data/fix/linux/debian-cve-2023-0809.md) | Oct 2, 2023 | Debian 14 2.0.17-1 | Routine | 1 | 0 |
| [mosquitto 2.0.11-1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-mosquitto-2.0.11-1ubuntu1.1.md) | Oct 2, 2023 | Ubuntu 22.04.1 LTS (jammy) 2.0.11-1ubuntu1.1 | High | 5 | 0 |
| [mosquitto 1.6.9-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mosquitto-1.6.9-1ubuntu0.1-esm1.md) | Oct 2, 2023 | Ubuntu 20.04 LTS (focal) 1.6.9-1ubuntu0.1~esm1 | High | 4 | 0 |
| [DSA-5511-1](https://patchblox.com/security/data/fix/linux/dsa-5511-1.md) | Oct 1, 2023 | Debian 11.6 (bullseye) 2.0.11-1+deb11u1 | Routine | 1 | 0 |
| [DSA-5511-1](https://patchblox.com/security/data/fix/linux/dsa-5511-1.md) | Oct 1, 2023 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2023-28366](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28366.md) | Sep 1, 2023 | Debian 12.15 (bookworm) 2.0.11-1.2+deb12u1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-28366](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28366.md) | Sep 1, 2023 | Debian 13.5 (trixie) 2.0.17-1 | High | 1 | 0 |
| [DEBIAN-CVE-2023-28366](https://patchblox.com/security/data/fix/linux/debian-cve-2023-28366.md) | Sep 1, 2023 | Debian 14 2.0.17-1 | High | 1 | 0 |
| [DEBIAN-CVE-2021-41039](https://patchblox.com/security/data/fix/linux/debian-cve-2021-41039.md) | Dec 1, 2021 | Debian 12.15 (bookworm) 2.0.11-1.2 | High | 1 | 0 |
| [DEBIAN-CVE-2021-41039](https://patchblox.com/security/data/fix/linux/debian-cve-2021-41039.md) | Dec 1, 2021 | Debian 13.5 (trixie) 2.0.11-1.2 | High | 1 | 0 |
| [DEBIAN-CVE-2021-41039](https://patchblox.com/security/data/fix/linux/debian-cve-2021-41039.md) | Dec 1, 2021 | Debian 14 2.0.11-1.2 | High | 1 | 0 |
| [mosquitto 1.4.15-2ubuntu0.18.04.3+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mosquitto-1.4.15-2ubuntu0.18.04.3-esm1.md) | Mar 27, 2019 | Ubuntu 18.04.6 LTS (bionic) 1.4.15-2ubuntu0.18.04.3+esm1 | Routine | 1 | 0 |
| [mosquitto 1.4.15-2ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mosquitto-1.4.15-2ubuntu0.18.04.1.md) | Mar 27, 2019 | Ubuntu 18.04.6 LTS (bionic) 1.4.15-2ubuntu0.18.04.1 | Routine | 3 | 0 |
| [mosquitto 1.4.15-2ubuntu0.18.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mosquitto-1.4.15-2ubuntu0.18.04.3.md) | Jun 4, 2018 | Ubuntu 18.04.6 LTS (bionic) 1.4.15-2ubuntu0.18.04.3 | Routine | 2 | 0 |

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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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