Canonical Ubuntu Server 26.04 LTS (Resolute Raccoon) Update Version 6.5.4-0.1ubuntu0.2
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Update Summary
USN-8952-1 addresses Tornado vulnerabilities in Ubuntu 26.04 LTS that could enable denial of service, sensitive information exposure, or access-control bypass through crafted network traffic.
Update Details
Security
- Tornado improperly handled certain HTTP requests and network inputs, allowing potential denial of service, sensitive information exposure, or access-control bypass.
- CVE-2023-54397, CVE-2024-14029, CVE-2026-91990, CVE-2026-91992, CVE-2026-103262, and CVE-2026-103263 are addressed.
Hints
- Apply a standard system update to install the necessary fixes.
- For Ubuntu 26.04 LTS Resolute, update python3-tornado to version 6.5.4-0.1ubuntu0.2.
Product Information
Vendor: Canonical
Product: Ubuntu Server
Product type: Software
Application category: Utilities
Platform: Linux
Variant: 26.04 LTS (Resolute Raccoon)
Version: 6.5.4-0.1ubuntu0.2
Vendor information published: Oct 22, 2026
Original release notes: View on vendor site
Published on updatealert.io: Oct 23, 2026
Description: Server operating system for Linux infrastructure and workloads.