# RHSA-2026:68601: valkey security update

RHSA-2026:68601, released September 10, 2026, fixes 3 CVEs in valkey (version 8.0.11-1.el10_0). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-68601
- Platform: Linux
- Released: Sep 10, 2026
- Priority: High (Closes CVE-2026-63639, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:68601

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [valkey](https://patchblox.com/security/data/product/linux/valkey.md) | RHEL 10 | 8.0.11-1.el10_0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-63639](https://patchblox.com/security/data/cve/CVE-2026-63639.md) | High | Valkey: UAF in stream deserialization may lead to remote code execution | 8.8 | 0.0089 |  |
| [CVE-2026-66373](https://patchblox.com/security/data/cve/CVE-2026-66373.md) | High | Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243. | 8.8 | 0.0087 |  |
| [CVE-2026-56684](https://patchblox.com/security/data/cve/CVE-2026-56684.md) | High | Valkey: TLS pending-data processing use-after-free may allow remote code execution | 8.8 | 0.0052 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo