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Canonical Ubuntu Server 26.04 LTS (Resolute Raccoon) Update Version valkey-tools 9.0.4-0ubuntu0.2

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Update Summary

USN-8771-1 addresses multiple Valkey security issues, including TLS handling, RESTORE stream payload processing, and cluster slot migration. The update can cause denial of service and, in some cases, arbitrary code execution. Reference IDs: CVE-2026-56684, CVE-2026-63639, CVE-2026-85522.

Update Details

Security

  • Valkey incorrectly handled TLS connections under certain conditions, which could allow a remote attacker to crash the service or execute arbitrary code (CVE-2026-56684).
  • Valkey incorrectly handled certain stream RDB payloads during the RESTORE command, which could allow an authenticated remote attacker to crash the service or execute arbitrary code (CVE-2026-63639).
  • Valkey incorrectly handled cluster slot migration operations, which could allow a remote attacker to crash the service (CVE-2026-85522).

Hints

  • A standard system update will apply the fixes.
  • For Ubuntu 26.04 LTS, update valkey-tools to 9.0.4-0ubuntu0.2.

Product Information

Vendor: Canonical

Product: Ubuntu Server

Product type: Software

Application category: Utilities

Platform: Linux

Variant: 26.04 LTS (Resolute Raccoon)

Version: valkey-tools 9.0.4-0ubuntu0.2

Vendor release date: Sep 16, 2026

Original release notes: View on vendor site

Published on updatealert.io: Sep 17, 2026

Description: Server operating system for Linux infrastructure and workloads.

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