# zlib security updates

Patch Radar has 36 security fixes for zlib, closing 7 CVEs. The newest security fix is DEBIAN-CVE-2026-85091 (1:1.3.dfsg+really1.3.2-4), released September 3, 2026.

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

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [DEBIAN-CVE-2026-85091](https://patchblox.com/security/data/fix/linux/debian-cve-2026-85091.md) | Sep 3, 2026 | Debian 14 1:1.3.dfsg+really1.3.2-4 | High | 1 | 0 |
| [DEBIAN-CVE-2026-76844](https://patchblox.com/security/data/fix/linux/debian-cve-2026-76844.md) | Aug 24, 2026 | Debian 14 1:1.3.dfsg+really1.3.2-4 | High | 1 | 0 |
| [OPENSUSE-SU-2026:20487-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20487-1.md) | Apr 9, 2026 | opensuse-leap 16.0 1.2.13-160000.3.1 | Urgent | 2 | 0 |
| [SUSE-SU-2026:21151-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21151-1.md) | Apr 9, 2026 | sles 16.0 1.2.13-160000.3.1 | Urgent | 2 | 0 |
| [SUSE-SU-2026:0783-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0783-1.md) | Mar 3, 2026 | sles 15.7 1.2.13-150500.4.6.1 | Routine | 1 | 0 |
| [SUSE-SU-2026:0783-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0783-1.md) | Mar 3, 2026 | opensuse-leap 15.6 1.2.13-150500.4.6.1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2026-27171](https://patchblox.com/security/data/fix/linux/debian-cve-2026-27171.md) | Feb 18, 2026 | Debian 14 1:1.3.dfsg+really1.3.2-1 | Routine | 1 | 0 |
| [DEBIAN-CVE-2026-22184](https://patchblox.com/security/data/fix/linux/debian-cve-2026-22184.md) | Jan 7, 2026 | Debian 12.15 (bookworm) 1:1.2.6.dfsg-1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2026-22184](https://patchblox.com/security/data/fix/linux/debian-cve-2026-22184.md) | Jan 7, 2026 | Debian 13.5 (trixie) 1:1.2.6.dfsg-1 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2026-22184](https://patchblox.com/security/data/fix/linux/debian-cve-2026-22184.md) | Jan 7, 2026 | Debian 14 1:1.2.6.dfsg-1 | Urgent | 1 | 0 |
| [ALAS2023-2023-410](https://patchblox.com/security/data/fix/linux/alas2023-2023-410.md) | Oct 30, 2023 | amzn 2023 1.2.11-33.amzn2023.0.5 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2023-45853](https://patchblox.com/security/data/fix/linux/debian-cve-2023-45853.md) | Oct 14, 2023 | Debian 13.5 (trixie) 1:1.3.dfsg-2 | Urgent | 1 | 0 |
| [DEBIAN-CVE-2023-45853](https://patchblox.com/security/data/fix/linux/debian-cve-2023-45853.md) | Oct 14, 2023 | Debian 14 1:1.3.dfsg-2 | Urgent | 1 | 0 |
| [ALAS2023-2023-003](https://patchblox.com/security/data/fix/linux/alas2023-2023-003.md) | Feb 17, 2023 | amzn 2023 1.2.11-33.amzn2023.0.4 | High | 2 | 0 |
| [RLSA-2022:7314](https://patchblox.com/security/data/fix/linux/rlsa-2022-7314.md) | Nov 2, 2022 | rocky 9 0:1.2.11-32.el9_0 | High | 1 | 0 |
| [ALSA-2022:7314](https://patchblox.com/security/data/fix/linux/alsa-2022-7314.md) | Nov 2, 2022 | almalinux 9 1.2.11-32.el9_0 | High | 1 | 0 |
| [ELSA-2022-7314](https://patchblox.com/security/data/fix/linux/elsa-2022-7314.md) | Nov 2, 2022 | ol 9 0:1.2.11-32.el9_0 | High | 1 | 0 |
| [RHSA-2022:7314](https://patchblox.com/security/data/fix/linux/rhsa-2022-7314.md) | Nov 2, 2022 | RHEL 9 0:1.2.11-32.el9_0 | High | 1 | 0 |
| [ELSA-2022-7106](https://patchblox.com/security/data/fix/linux/elsa-2022-7106.md) | Oct 26, 2022 | ol 8 0:1.2.11-19.el8_6 | High | 1 | 0 |
| [RLSA-2022:7106](https://patchblox.com/security/data/fix/linux/rlsa-2022-7106.md) | Oct 25, 2022 | rocky 8 0:1.2.11-19.el8_6 | High | 1 | 0 |
| [ALSA-2022:7106](https://patchblox.com/security/data/fix/linux/alsa-2022-7106.md) | Oct 25, 2022 | almalinux 8 1.2.11-19.el8_6 | High | 1 | 0 |
| [RHSA-2022:7106](https://patchblox.com/security/data/fix/linux/rhsa-2022-7106.md) | Oct 25, 2022 | RHEL 8 0:1.2.11-19.el8_6 | High | 1 | 0 |
| [DSA-5218-1](https://patchblox.com/security/data/fix/linux/dsa-5218-1.md) | Aug 25, 2022 | Debian 11.6 (bullseye) 1:1.2.11.dfsg-2+deb11u2 | High | 1 | 0 |
| [DEBIAN-CVE-2022-37434](https://patchblox.com/security/data/fix/linux/debian-cve-2022-37434.md) | Aug 5, 2022 | Debian 12.15 (bookworm) 1:1.2.11.dfsg-4.1 | High | 1 | 0 |
| [DEBIAN-CVE-2022-37434](https://patchblox.com/security/data/fix/linux/debian-cve-2022-37434.md) | Aug 5, 2022 | Debian 13.5 (trixie) 1:1.2.11.dfsg-4.1 | High | 1 | 0 |
| [DEBIAN-CVE-2022-37434](https://patchblox.com/security/data/fix/linux/debian-cve-2022-37434.md) | Aug 5, 2022 | Debian 14 1:1.2.11.dfsg-4.1 | High | 1 | 0 |
| [ELSA-2022-4584](https://patchblox.com/security/data/fix/linux/elsa-2022-4584.md) | Jun 30, 2022 | ol 9 0:1.2.11-31.el9_0.1 | High | 1 | 0 |
| [RHSA-2022:4584](https://patchblox.com/security/data/fix/linux/rhsa-2022-4584.md) | May 17, 2022 | RHEL 9 0:1.2.11-31.el9_0.1 | High | 1 | 0 |
| [ALSA-2022:1642](https://patchblox.com/security/data/fix/linux/alsa-2022-1642.md) | Apr 28, 2022 | almalinux 8 1.2.11-18.el8_5 | High | 1 | 0 |
| [RLSA-2022:1642](https://patchblox.com/security/data/fix/linux/rlsa-2022-1642.md) | Apr 28, 2022 | rocky 8 0:1.2.11-18.el8_5 | High | 1 | 0 |
| [ELSA-2022-1642](https://patchblox.com/security/data/fix/linux/elsa-2022-1642.md) | Apr 28, 2022 | ol 8 0:1.2.11-18.el8_5 | High | 1 | 0 |
| [RHSA-2022:1642](https://patchblox.com/security/data/fix/linux/rhsa-2022-1642.md) | Apr 28, 2022 | RHEL 8 0:1.2.11-18.el8_5 | High | 1 | 0 |
| [DSA-5111-1](https://patchblox.com/security/data/fix/linux/dsa-5111-1.md) | Apr 1, 2022 | Debian 11.6 (bullseye) 1:1.2.11.dfsg-2+deb11u1 | High | 1 | 0 |
| [DEBIAN-CVE-2018-25032](https://patchblox.com/security/data/fix/linux/debian-cve-2018-25032.md) | Mar 25, 2022 | Debian 12.15 (bookworm) 1:1.2.11.dfsg-4 | High | 1 | 0 |
| [DEBIAN-CVE-2018-25032](https://patchblox.com/security/data/fix/linux/debian-cve-2018-25032.md) | Mar 25, 2022 | Debian 13.5 (trixie) 1:1.2.11.dfsg-4 | High | 1 | 0 |
| [DEBIAN-CVE-2018-25032](https://patchblox.com/security/data/fix/linux/debian-cve-2018-25032.md) | Mar 25, 2022 | Debian 14 1:1.2.11.dfsg-4 | High | 1 | 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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