Linuxsecurity
Critical nginx Vulnerability in Ubuntu Affects Multiple Releases
First seen 13 Feb 2026, 08:09 UTC
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A critical security flaw has been identified in nginx affecting Ubuntu 25.10, 24.04 LTS, and 22.04 LTS. The vulnerability allows an attacker to insert plain text data into responses from upstream proxied servers due to improper handling of proxying to upstream TLS servers. Users are advised to apply patches to mitigate the risk.
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Timeline
2026-02-04
CVE-2026-1642 published
2026-02-12
Security issue announced affecting multiple Ubuntu releases