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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Oracle Missing Cpu Oct 2026 | — | Apply the October 2026 Critical Patch Update (CPU) for Oracle Database | Oct 26, 2026 | Sep 18, 2026 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub