# ELSA-2026-55442: Security update for 7 packages

ELSA-2026-55442, released August 17, 2026, fixes 6 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2026-55442
- Platform: Linux
- Released: Aug 17, 2026
- Priority: High (Closes CVE-2026-11622, high severity)
- CVEs: 6, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2026-55442.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [bind9.18](https://patchblox.com/security/data/product/linux/bind9.18.md) | ol 9 | 32:9.18.29-14.el9_8.8 |
| [bind9.18-chroot](https://patchblox.com/security/data/product/linux/bind9.18-chroot.md) | ol 9 | 32:9.18.29-14.el9_8.8 |
| [bind9.18-devel](https://patchblox.com/security/data/product/linux/bind9.18-devel.md) | ol 9 | 32:9.18.29-14.el9_8.8 |
| [bind9.18-dnssec-utils](https://patchblox.com/security/data/product/linux/bind9.18-dnssec-utils.md) | ol 9 | 32:9.18.29-14.el9_8.8 |
| [bind9.18-doc](https://patchblox.com/security/data/product/linux/bind9.18-doc.md) | ol 9 | 32:9.18.29-14.el9_8.8 |
| [bind9.18-libs](https://patchblox.com/security/data/product/linux/bind9.18-libs.md) | ol 9 | 32:9.18.29-14.el9_8.8 |
| [bind9.18-utils](https://patchblox.com/security/data/product/linux/bind9.18-utils.md) | ol 9 | 32:9.18.29-14.el9_8.8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-11622](https://patchblox.com/security/data/cve/CVE-2026-11622.md) | High | Potential memory usage beyond configured limits | 8.6 | 0.0054 |  |
| [CVE-2026-13204](https://patchblox.com/security/data/cve/CVE-2026-13204.md) | High | Unexpected exit in certain situations with NSEC and NSEC3 both present | 8.6 | 0.0052 |  |
| [CVE-2026-11331](https://patchblox.com/security/data/cve/CVE-2026-11331.md) | High | Potential wildcard CNAME RPZ policy bypass | 8.6 | 0.0043 |  |
| [CVE-2026-11721](https://patchblox.com/security/data/cve/CVE-2026-11721.md) | High | Cache poisoning possible with label count discrepancy, RRSIG, and wildcards | 8.6 | 0.0040 |  |
| [CVE-2026-10723](https://patchblox.com/security/data/cve/CVE-2026-10723.md) | High | Incorrect acceptance of NSEC3 records | 8.6 | 0.0027 |  |
| [CVE-2026-13321](https://patchblox.com/security/data/cve/CVE-2026-13321.md) | High | DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field | 8.6 | 0.0022 |  |

---

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