# RHSA-2026:97121: unbound security update

RHSA-2026:97121, released May 20, 2026, fixes 3 CVEs in unbound (version 1.26.1-2.el10_3). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-97121
- Platform: Linux
- Released: May 20, 2026
- Priority: High (Closes CVE-2026-42960, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:97121

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [unbound](https://patchblox.com/security/data/product/linux/unbound.md) | RHEL 10 | 1.26.1-2.el10_3 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-42960](https://patchblox.com/security/data/cve/CVE-2026-42960.md) | High | Possible cache poisoning via promiscuous records for the authority section | 10.0 | 0.0026 |  |
| [CVE-2026-42923](https://patchblox.com/security/data/cve/CVE-2026-42923.md) | Routine | Degradation of service with unbounded NSEC3 hash calculations | 5.3 | 0.0034 |  |
| [CVE-2026-44608](https://patchblox.com/security/data/cve/CVE-2026-44608.md) | Routine | Use after free and crash under special conditions in RPZ code | 5.9 | 0.0026 |  |

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Data as of 2026-11-11T01:43:54Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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