# libtasn1 security updates

Patch Radar has 37 security fixes for libtasn1, closing 3 CVEs. The newest is ELSA-2026-28235 (0:4.20.0-5.el10_2), released July 16, 2026.

- Web page: https://patchblox.com/security/product/linux/libtasn1
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [ELSA-2026-28235](https://patchblox.com/security/data/fix/linux/elsa-2026-28235.md) | Jul 16, 2026 | ol 10 0:4.20.0-5.el10_2 | High | 1 | 0 |
| [RHSA-2026:36728](https://patchblox.com/security/data/fix/linux/rhsa-2026-36728.md) | Jul 9, 2026 | RHEL 8 0:4.13-6.el8_10 | High | 1 | 0 |
| [RLSA-2026:36728](https://patchblox.com/security/data/fix/linux/rlsa-2026-36728.md) | Jul 9, 2026 | rocky 8 0:4.13-6.el8_10 | High | 1 | 0 |
| [ALSA-2026:36728](https://patchblox.com/security/data/fix/linux/alsa-2026-36728.md) | Jul 8, 2026 | almalinux 8 4.13-6.el8_10 | High | 1 | 0 |
| [ELSA-2026-36728](https://patchblox.com/security/data/fix/linux/elsa-2026-36728.md) | Jul 8, 2026 | ol 8 0:4.13-6.el8_10 | High | 1 | 0 |
| [RHSA-2026:28253](https://patchblox.com/security/data/fix/linux/rhsa-2026-28253.md) | Jun 24, 2026 | RHEL 9 0:4.16.0-10.el9_8 | High | 1 | 0 |
| [RLSA-2026:28235](https://patchblox.com/security/data/fix/linux/rlsa-2026-28235.md) | Jun 24, 2026 | rocky 10 0:4.20.0-5.el10_2 | High | 1 | 0 |
| [RLSA-2026:28253](https://patchblox.com/security/data/fix/linux/rlsa-2026-28253.md) | Jun 24, 2026 | rocky 9 0:4.16.0-10.el9_8 | High | 1 | 0 |
| [ALSA-2026:28235](https://patchblox.com/security/data/fix/linux/alsa-2026-28235.md) | Jun 23, 2026 | almalinux 10 4.20.0-5.el10_2 | High | 1 | 0 |
| [ALSA-2026:28253](https://patchblox.com/security/data/fix/linux/alsa-2026-28253.md) | Jun 23, 2026 | almalinux 9 4.16.0-10.el9_8 | High | 1 | 0 |
| [ELSA-2026-28253](https://patchblox.com/security/data/fix/linux/elsa-2026-28253.md) | Jun 23, 2026 | ol 9 0:4.16.0-10.el9_8 | High | 1 | 0 |
| [OPENSUSE-SU-2026:20470-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20470-1.md) | Apr 7, 2026 | opensuse-leap 16.0 4.21.0-160000.1.1 | High | 1 | 0 |
| [SUSE-SU-2026:21142-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21142-1.md) | Apr 7, 2026 | sles 16.0 4.21.0-160000.1.1 | High | 1 | 0 |
| [ALAS2023-2026-1395](https://patchblox.com/security/data/fix/linux/alas2023-2026-1395.md) | Feb 5, 2026 | amzn 2023 4.19.0-1.amzn2023.0.6 | High | 1 | 0 |
| [SUSE-SU-2026:0224-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0224-1.md) | Jan 22, 2026 | sles 15.7 4.13-150000.4.14.1 | High | 1 | 0 |
| [SUSE-SU-2026:0224-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0224-1.md) | Jan 22, 2026 | opensuse-leap 15.6 4.13-150000.4.14.1 | High | 1 | 0 |
| [RHSA-2026:28235](https://patchblox.com/security/data/fix/linux/rhsa-2026-28235.md) | Jan 7, 2026 | RHEL 10 4.20.0-5.el10_2 | High | 1 | 0 |
| [RLSA-2025:7077](https://patchblox.com/security/data/fix/linux/rlsa-2025-7077.md) | Oct 4, 2025 | rocky 9 0:4.16.0-9.el9 | Routine | 1 | 0 |
| [RLSA-2025:4049](https://patchblox.com/security/data/fix/linux/rlsa-2025-4049.md) | Jul 29, 2025 | rocky 8 0:4.13-5.el8_10 | Routine | 1 | 0 |
| [ALAS2023-2025-989](https://patchblox.com/security/data/fix/linux/alas2023-2025-989.md) | May 21, 2025 | amzn 2023 4.19.0-1.amzn2023.0.5 | Routine | 1 | 0 |
| [ELSA-2025-7077](https://patchblox.com/security/data/fix/linux/elsa-2025-7077.md) | May 16, 2025 | ol 9 0:4.16.0-9.el9 | Routine | 1 | 0 |
| [ALSA-2025:7077](https://patchblox.com/security/data/fix/linux/alsa-2025-7077.md) | May 13, 2025 | almalinux 9 4.16.0-9.el9 | Routine | 1 | 0 |
| [RHSA-2025:7077](https://patchblox.com/security/data/fix/linux/rhsa-2025-7077.md) | May 13, 2025 | RHEL 9 0:4.16.0-9.el9 | Routine | 1 | 0 |
| [RHSA-2025:4049](https://patchblox.com/security/data/fix/linux/rhsa-2025-4049.md) | Apr 23, 2025 | RHEL 8 0:4.13-5.el8_10 | Routine | 1 | 0 |
| [ALSA-2025:4049](https://patchblox.com/security/data/fix/linux/alsa-2025-4049.md) | Apr 22, 2025 | almalinux 8 4.13-5.el8_10 | Routine | 1 | 0 |
| [ELSA-2025-4049](https://patchblox.com/security/data/fix/linux/elsa-2025-4049.md) | Apr 21, 2025 | ol 8 0:4.13-5.el8_10 | Routine | 1 | 0 |
| [SUSE-SU-2025:0548-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0548-1.md) | Feb 14, 2025 | sles 15.6 4.13-150000.4.11.1 | Routine | 1 | 0 |
| [SUSE-SU-2025:0548-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0548-1.md) | Feb 14, 2025 | opensuse-leap 15.6 4.13-150000.4.11.1 | Routine | 1 | 0 |
| [ALAS2023-2023-201](https://patchblox.com/security/data/fix/linux/alas2023-2023-201.md) | Jun 5, 2023 | amzn 2023 4.19.0-1.amzn2023.0.1 | High | 1 | 0 |
| [ELSA-2023-0343](https://patchblox.com/security/data/fix/linux/elsa-2023-0343.md) | Jan 25, 2023 | ol 9 0:4.16.0-8.el9_1 | High | 1 | 0 |
| [RLSA-2023:0343](https://patchblox.com/security/data/fix/linux/rlsa-2023-0343.md) | Jan 23, 2023 | rocky 9 0:4.16.0-8.el9_1 | High | 1 | 0 |
| [ALSA-2023:0343](https://patchblox.com/security/data/fix/linux/alsa-2023-0343.md) | Jan 23, 2023 | almalinux 9 4.16.0-8.el9_1 | High | 1 | 0 |
| [RHSA-2023:0343](https://patchblox.com/security/data/fix/linux/rhsa-2023-0343.md) | Jan 23, 2023 | RHEL 9 0:4.16.0-8.el9_1 | High | 1 | 0 |
| [RLSA-2023:0116](https://patchblox.com/security/data/fix/linux/rlsa-2023-0116.md) | Jan 12, 2023 | rocky 8 0:4.13-4.el8_7 | High | 1 | 0 |
| [ALSA-2023:0116](https://patchblox.com/security/data/fix/linux/alsa-2023-0116.md) | Jan 12, 2023 | almalinux 8 4.13-4.el8_7 | High | 1 | 0 |
| [ELSA-2023-0116](https://patchblox.com/security/data/fix/linux/elsa-2023-0116.md) | Jan 12, 2023 | ol 8 0:4.13-4.el8_7 | High | 1 | 0 |
| [RHSA-2023:0116](https://patchblox.com/security/data/fix/linux/rhsa-2023-0116.md) | Jan 12, 2023 | RHEL 8 0:4.13-4.el8_7 | 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
