https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T13:55:45.619631+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/fkie_cve-2026-93567 fkie_cve-2026-93567 2026-09-29T13:55:45.674333+00:00

A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leading to a malformed HTTP/2 CONNECT request. This can bypass security controls such as tunnel allow-lists or egress policies, resulting in integrity loss.

 https://vulnerability.circl.lu/vuln/ghsa-xf8w-rc87-x5gw GHSA-xf8w-rc87-x5gw 2026-09-29T13:55:45.674450+00:00

HTTP/1 authority-form CONNECT is translated to malformed HTTP/2 CONNECT with Host-controlled :authority

 https://vulnerability.circl.lu/vuln/opensuse-su-2026:11882-1 openSUSE-SU-2026:11882-1 — netty-4.1.138-1.1 on GA media 2026-09-29T13:55:45.674488+00:00

netty-4.1.138-1.1 on GA media

 https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-93567 UBUNTU-CVE-2026-93567 2026-09-29T13:55:45.674547+00:00

Affected: Ubuntu:Pro:14.04:LTS: netty, Ubuntu:Pro:16.04:LTS: netty, Ubuntu:Pro:18.04:LTS: netty, Ubuntu:Pro:20.04:LTS: netty, Ubuntu:Pro:22.04:LTS: netty, Ubuntu:Pro:24.04:LTS: netty, Ubuntu:Pro:26.04:LTS: netty

A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leading to a malformed HTTP/2 CONNECT request. This can bypass security controls such as tunnel allow-lists or egress policies, resulting in integrity loss.