# protobuf-compiler security updates

Patch Radar has 34 security fixes for protobuf-compiler, closing 7 CVEs. The newest security fix is RHSA-2026:3095 (0:3.14.0-17.el9_7), released March 12, 2026.

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

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [RHSA-2026:3095](https://patchblox.com/security/data/fix/linux/rhsa-2026-3095.md) | Mar 12, 2026 | RHEL 9 0:3.14.0-17.el9_7 | High | 1 | 0 |
| [ALSA-2026:3094](https://patchblox.com/security/data/fix/linux/alsa-2026-3094.md) | Feb 23, 2026 | almalinux 10 3.19.6-15.el10_1 | High | 1 | 0 |
| [ALSA-2026:3095](https://patchblox.com/security/data/fix/linux/alsa-2026-3095.md) | Feb 23, 2026 | almalinux 9 3.14.0-17.el9_7 | High | 1 | 0 |
| [ELSA-2026-3094](https://patchblox.com/security/data/fix/linux/elsa-2026-3094.md) | Feb 23, 2026 | ol 10 0:3.19.6-15.el10_1 | High | 1 | 0 |
| [ELSA-2026-3095](https://patchblox.com/security/data/fix/linux/elsa-2026-3095.md) | Feb 23, 2026 | ol 9 0:3.14.0-17.el9_7 | High | 1 | 0 |
| [ALAS2023-2026-1407](https://patchblox.com/security/data/fix/linux/alas2023-2026-1407.md) | Feb 16, 2026 | amzn 2023 3.19.6-1.amzn2023.0.3 | High | 1 | 0 |
| [protobuf-compiler 3.0.0-9.1ubuntu1.1+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-protobuf-compiler-3.0.0-9.1ubuntu1.1-esm4.md) | Jan 23, 2026 | Ubuntu 18.04.6 LTS (bionic) 3.0.0-9.1ubuntu1.1+esm4 | High | 1 | 0 |
| [protobuf-compiler 3.12.4-1ubuntu7.22.04.6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-protobuf-compiler-3.12.4-1ubuntu7.22.04.6.md) | Jan 23, 2026 | Ubuntu 22.04.1 LTS (jammy) 3.12.4-1ubuntu7.22.04.6 | High | 1 | 0 |
| [protobuf-compiler 3.21.12-11ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-questing-protobuf-compiler-3.21.12-11ubuntu3.1.md) | Jan 23, 2026 | Ubuntu 25.10 (questing) 3.21.12-11ubuntu3.1 | High | 1 | 0 |
| [protobuf-compiler 3.21.12-15ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-protobuf-compiler-3.21.12-15ubuntu1.md) | Jan 23, 2026 | Ubuntu 26.04.1 LTS (resolute) 3.21.12-15ubuntu1 | High | 1 | 0 |
| [protobuf-compiler 3.21.12-8.2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-noble-protobuf-compiler-3.21.12-8.2ubuntu0.3.md) | Jan 23, 2026 | Ubuntu 24.04.5 LTS (noble) 3.21.12-8.2ubuntu0.3 | High | 1 | 0 |
| [protobuf-compiler 3.6.1.3-2ubuntu5.2+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-protobuf-compiler-3.6.1.3-2ubuntu5.2-esm3.md) | Jan 23, 2026 | Ubuntu 20.04 LTS (focal) 3.6.1.3-2ubuntu5.2+esm3 | High | 1 | 0 |
| [protobuf-compiler 3.21.12-10ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-protobuf-compiler-3.21.12-10ubuntu0.1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 3.21.12-10ubuntu0.1 | High | 2 | 0 |
| [protobuf-compiler 3.21.12-9ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-protobuf-compiler-3.21.12-9ubuntu1.1.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 3.21.12-9ubuntu1.1 | High | 1 | 0 |
| [protobuf-compiler 3.0.0-9.1ubuntu1.1+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-protobuf-compiler-3.0.0-9.1ubuntu1.1-esm3.md) | Jun 16, 2025 | Ubuntu 18.04.6 LTS (bionic) 3.0.0-9.1ubuntu1.1+esm3 | High | 2 | 0 |
| [protobuf-compiler 3.6.1.3-2ubuntu5.2+esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-protobuf-compiler-3.6.1.3-2ubuntu5.2-esm2.md) | Jun 16, 2025 | Ubuntu 20.04 LTS (focal) 3.6.1.3-2ubuntu5.2+esm2 | High | 2 | 0 |
| [protobuf-compiler 3.12.4-1ubuntu7.22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-protobuf-compiler-3.12.4-1ubuntu7.22.04.4.md) | Jun 16, 2025 | Ubuntu 22.04.1 LTS (jammy) 3.12.4-1ubuntu7.22.04.4 | Routine | 1 | 0 |
| [protobuf-compiler 3.21.12-8.2ubuntu0.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-protobuf-compiler-3.21.12-8.2ubuntu0.2.md) | Jun 16, 2025 | Ubuntu 24.04.5 LTS (noble) 3.21.12-8.2ubuntu0.2 | Routine | 1 | 0 |
| [ELSA-2025-7138](https://patchblox.com/security/data/fix/linux/elsa-2025-7138.md) | May 16, 2025 | ol 9 0:3.14.0-16.el9 | High | 1 | 0 |
| [ALSA-2025:7138](https://patchblox.com/security/data/fix/linux/alsa-2025-7138.md) | May 13, 2025 | almalinux 9 3.14.0-16.el9 | High | 1 | 0 |
| [RHSA-2025:7138](https://patchblox.com/security/data/fix/linux/rhsa-2025-7138.md) | May 13, 2025 | RHEL 9 0:3.14.0-16.el9 | High | 1 | 0 |
| [protobuf-compiler 3.12.4-1ubuntu7.22.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-protobuf-compiler-3.12.4-1ubuntu7.22.04.2.md) | Sep 18, 2024 | Ubuntu 22.04.1 LTS (jammy) 3.12.4-1ubuntu7.22.04.2 | High | 1 | 0 |
| [protobuf-compiler 3.21.12-8.2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-protobuf-compiler-3.21.12-8.2ubuntu0.1.md) | Sep 18, 2024 | Ubuntu 24.04.5 LTS (noble) 3.21.12-8.2ubuntu0.1 | High | 1 | 0 |
| [ALAS2023-2023-049](https://patchblox.com/security/data/fix/linux/alas2023-2023-049.md) | Feb 17, 2023 | amzn 2023 3.19.6-1.amzn2023.0.1 | High | 2 | 0 |
| [ALAS2023-2023-009](https://patchblox.com/security/data/fix/linux/alas2023-2023-009.md) | Feb 17, 2023 | amzn 2023 3.14.0-7.amzn2023.0.3 | High | 1 | 0 |
| [ELSA-2022-7970](https://patchblox.com/security/data/fix/linux/elsa-2022-7970.md) | Nov 22, 2022 | ol 9 0:3.14.0-13.el9 | High | 1 | 0 |
| [ALSA-2022:7970](https://patchblox.com/security/data/fix/linux/alsa-2022-7970.md) | Nov 15, 2022 | almalinux 9 3.14.0-13.el9 | High | 1 | 0 |
| [ELSA-2022-7464](https://patchblox.com/security/data/fix/linux/elsa-2022-7464.md) | Nov 15, 2022 | ol 8 0:3.5.0-15.el8 | High | 1 | 0 |
| [RHSA-2022:7970](https://patchblox.com/security/data/fix/linux/rhsa-2022-7970.md) | Nov 15, 2022 | RHEL 9 0:3.14.0-13.el9 | High | 1 | 0 |
| [ALSA-2022:7464](https://patchblox.com/security/data/fix/linux/alsa-2022-7464.md) | Nov 8, 2022 | almalinux 8 3.5.0-15.el8 | High | 1 | 0 |
| [RHSA-2022:7464](https://patchblox.com/security/data/fix/linux/rhsa-2022-7464.md) | Nov 8, 2022 | RHEL 8 0:3.5.0-15.el8 | High | 1 | 0 |
| [protobuf-compiler 3.0.0-9.1ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-protobuf-compiler-3.0.0-9.1ubuntu1.1.md) | Sep 22, 2022 | Ubuntu 18.04.6 LTS (bionic) 3.0.0-9.1ubuntu1.1 | High | 3 | 0 |
| [protobuf-compiler 3.12.4-1ubuntu7.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-protobuf-compiler-3.12.4-1ubuntu7.22.04.1.md) | Sep 22, 2022 | Ubuntu 22.04.1 LTS (jammy) 3.12.4-1ubuntu7.22.04.1 | High | 3 | 0 |
| [protobuf-compiler 3.6.1.3-2ubuntu5.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-protobuf-compiler-3.6.1.3-2ubuntu5.2.md) | Sep 22, 2022 | Ubuntu 20.04 LTS (focal) 3.6.1.3-2ubuntu5.2 | High | 3 | 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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