# libnghttp2 security updates Patch Radar has 37 security fixes for libnghttp2, closing 8 CVEs, 1 of which is being exploited. The newest security fix is RHSA-2026:55804 (0:1.33.0-6.el8_10.3), released August 19, 2026. - Web page: https://patchblox.com/security/product/linux/libnghttp2 - Platform: Linux - Supported: yes ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [RHSA-2026:55804](https://patchblox.com/security/data/fix/linux/rhsa-2026-55804.md) | Aug 19, 2026 | RHEL 8 0:1.33.0-6.el8_10.3 | Routine | 1 | 0 | | [ELSA-2026-55804](https://patchblox.com/security/data/fix/linux/elsa-2026-55804.md) | Aug 18, 2026 | ol 8 0:1.33.0-6.el8_10.3 | Routine | 1 | 0 | | [ALSA-2026:55804](https://patchblox.com/security/data/fix/linux/alsa-2026-55804.md) | Aug 17, 2026 | almalinux 8 1.33.0-6.el8_10.3 | Routine | 1 | 0 | | [RHSA-2026:54662](https://patchblox.com/security/data/fix/linux/rhsa-2026-54662.md) | Aug 14, 2026 | RHEL 9 0:1.43.0-6.el9_8.2 | Routine | 1 | 0 | | [ALSA-2026:54650](https://patchblox.com/security/data/fix/linux/alsa-2026-54650.md) | Aug 13, 2026 | almalinux 10 1.68.0-3.el10_2.2 | Routine | 1 | 0 | | [ALSA-2026:54662](https://patchblox.com/security/data/fix/linux/alsa-2026-54662.md) | Aug 13, 2026 | almalinux 9 1.43.0-6.el9_8.2 | Routine | 1 | 0 | | [ELSA-2026-54650](https://patchblox.com/security/data/fix/linux/elsa-2026-54650.md) | Aug 13, 2026 | ol 10 0:1.68.0-3.el10_2.2 | Routine | 1 | 0 | | [ELSA-2026-54662](https://patchblox.com/security/data/fix/linux/elsa-2026-54662.md) | Aug 13, 2026 | ol 9 0:1.43.0-6.el9_8.2 | Routine | 1 | 0 | | [FEDORA-2026-91DD0C29D6](https://patchblox.com/security/data/fix/linux/fedora-2026-91dd0c29d6.md) | Aug 7, 2026 | Fedora 43 1.66.0-3.fc43 | Routine | 1 | 0 | | [RHSA-2026:7668](https://patchblox.com/security/data/fix/linux/rhsa-2026-7668.md) | Apr 15, 2026 | RHEL 9 0:1.43.0-6.el9_7.1 | High | 1 | 0 | | [RHSA-2026:7667](https://patchblox.com/security/data/fix/linux/rhsa-2026-7667.md) | Apr 15, 2026 | RHEL 8 0:1.33.0-6.el8_10.2 | High | 1 | 0 | | [ALAS2023-2026-1542](https://patchblox.com/security/data/fix/linux/alas2023-2026-1542.md) | Apr 13, 2026 | amzn 2023 1.59.0-3.amzn2023.0.2 | High | 1 | 0 | | [ALSA-2026:7666](https://patchblox.com/security/data/fix/linux/alsa-2026-7666.md) | Apr 13, 2026 | almalinux 10 1.64.0-2.el10_1.1 | High | 1 | 0 | | [ALSA-2026:7667](https://patchblox.com/security/data/fix/linux/alsa-2026-7667.md) | Apr 13, 2026 | almalinux 8 1.33.0-6.el8_10.2 | High | 1 | 0 | | [ALSA-2026:7668](https://patchblox.com/security/data/fix/linux/alsa-2026-7668.md) | Apr 13, 2026 | almalinux 9 1.43.0-6.el9_7.1 | High | 1 | 0 | | [ELSA-2026-7667](https://patchblox.com/security/data/fix/linux/elsa-2026-7667.md) | Apr 13, 2026 | ol 8 0:1.33.0-6.el8_10.2 | High | 1 | 0 | | [ELSA-2026-7668](https://patchblox.com/security/data/fix/linux/elsa-2026-7668.md) | Apr 13, 2026 | ol 9 0:1.43.0-6.el9_7.1 | High | 1 | 0 | | [ELSA-2026-7666](https://patchblox.com/security/data/fix/linux/elsa-2026-7666.md) | Apr 12, 2026 | ol 10 0:1.64.0-2.el10_1.1 | High | 1 | 0 | | [ALSA-2024:4252](https://patchblox.com/security/data/fix/linux/alsa-2024-4252.md) | Jul 2, 2024 | almalinux 8 1.33.0-6.el8_10.1 | High | 1 | 0 | | [ELSA-2024-4252](https://patchblox.com/security/data/fix/linux/elsa-2024-4252.md) | Jul 2, 2024 | ol 8 0:1.33.0-6.el8_10.1 | High | 1 | 0 | | [RHSA-2024:4252](https://patchblox.com/security/data/fix/linux/rhsa-2024-4252.md) | Jul 2, 2024 | RHEL 8 0:1.33.0-6.el8_10.1 | High | 1 | 0 | | [ELSA-2024-3501](https://patchblox.com/security/data/fix/linux/elsa-2024-3501.md) | Jun 20, 2024 | ol 9 0:1.43.0-5.el9_4.3 | High | 1 | 0 | | [ALSA-2024:3501](https://patchblox.com/security/data/fix/linux/alsa-2024-3501.md) | May 30, 2024 | almalinux 9 1.43.0-5.el9_4.3 | High | 1 | 0 | | [RHSA-2024:3501](https://patchblox.com/security/data/fix/linux/rhsa-2024-3501.md) | May 30, 2024 | RHEL 9 0:1.43.0-5.el9_4.3 | High | 1 | 0 | | [ALAS2023-2024-592](https://patchblox.com/security/data/fix/linux/alas2023-2024-592.md) | Apr 25, 2024 | amzn 2023 1.59.0-3.amzn2023.0.1 | High | 1 | 0 | | [ALSA-2023:6746](https://patchblox.com/security/data/fix/linux/alsa-2023-6746.md) | Nov 7, 2023 | almalinux 9 1.43.0-5.el9_3.1 | Patch now | 1 | 1 | | [RHSA-2023:6746](https://patchblox.com/security/data/fix/linux/rhsa-2023-6746.md) | Nov 7, 2023 | RHEL 9 0:1.43.0-5.el9_3.1 | Patch now | 1 | 1 | | [ELSA-2023-5837](https://patchblox.com/security/data/fix/linux/elsa-2023-5837.md) | Oct 19, 2023 | ol 8 0:1.33.0-5.el8_8 | Patch now | 1 | 1 | | [ELSA-2023-5838](https://patchblox.com/security/data/fix/linux/elsa-2023-5838.md) | Oct 19, 2023 | ol 9 0:1.43.0-5.el9_2.1 | Patch now | 1 | 1 | | [ALSA-2023:5837](https://patchblox.com/security/data/fix/linux/alsa-2023-5837.md) | Oct 18, 2023 | almalinux 8 1.33.0-5.el8_8 | Patch now | 1 | 1 | | [RHSA-2023:5837](https://patchblox.com/security/data/fix/linux/rhsa-2023-5837.md) | Oct 18, 2023 | RHEL 8 0:1.33.0-5.el8_8 | Patch now | 1 | 1 | | [ALAS2023-2023-392](https://patchblox.com/security/data/fix/linux/alas2023-2023-392.md) | Oct 16, 2023 | amzn 2023 1.57.0-1.amzn2023.0.1 | Patch now | 1 | 1 | | [ALAS2023-2023-278](https://patchblox.com/security/data/fix/linux/alas2023-2023-278.md) | Aug 3, 2023 | amzn 2023 1.55.1-1.amzn2023.0.1 | High | 1 | 0 | | [ELSA-2020-2755](https://patchblox.com/security/data/fix/linux/elsa-2020-2755.md) | Jul 6, 2020 | ol 8 0:1.33.0-3.el8_2.1 | High | 1 | 0 | | [RHSA-2020:2755](https://patchblox.com/security/data/fix/linux/rhsa-2020-2755.md) | Jun 25, 2020 | RHEL 8 0:1.33.0-3.el8_2.1 | High | 1 | 0 | | [ELSA-2019-2692](https://patchblox.com/security/data/fix/linux/elsa-2019-2692.md) | Sep 10, 2019 | ol 8 0:1.33.0-1.el8_0.1 | High | 2 | 0 | | [RHSA-2019:2692](https://patchblox.com/security/data/fix/linux/rhsa-2019-2692.md) | Sep 9, 2019 | RHEL 8 0:1.33.0-1.el8_0.1 | High | 2 | 0 | --- Data as of 2026-11-07T12:40:37Z UTC. 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