# RHSA-2026:42946: rhc-worker-playbook security update

RHSA-2026:42946, released June 2, 2026, fixes 1 CVE in rhc-worker-playbook (version 0.2.10-1.el10_2). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-42946
- Platform: Linux
- Released: Jun 2, 2026
- Priority: High (Closes CVE-2026-42504, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:42946

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [rhc-worker-playbook](https://patchblox.com/security/data/product/linux/rhc-worker-playbook.md) | RHEL 10 | 0.2.10-1.el10_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-42504](https://patchblox.com/security/data/cve/CVE-2026-42504.md) | High | Quadratic complexity in WordDecoder.DecodeHeader in mime | 8.8 | 0.0056 |  |

---

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo