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Update Summary

USN-8955-1 fixes five nginx vulnerabilities in Ubuntu 26.04 LTS, including denial-of-service, arbitrary-code-execution, request-injection, and client-certificate-verification issues.

Update Details

Security

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Hints

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Product Information

Vendor: Canonical

Product: Ubuntu Server

Product type: Software

Application category: Utilities

Platform: Linux

Variant: 26.04 LTS (Resolute Raccoon)

Version: nginx 1.28.3-2ubuntu1.12

Vendor information published: Oct 26, 2026

Original release notes: View on vendor site

Published on updatealert.io: Oct 30, 2026

Description: Server operating system for Linux infrastructure and workloads.