GHSA-6ff9-6jw2-jrgfMediumCVSS 5.3

A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending...

Published
September 18, 2026
Last Modified
September 18, 2026

🔗 CVE IDs covered (1)

📋 Description

A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending HTTP/2 SETTINGS frames with a very large MAX_HEADER_TABLE_SIZE. This causes the HpackEncoder to store an excessive number of unique headers, leading to increased CPU usage and memory consumption, ultimately resulting in a Denial of Service (DoS).

🔗 References (4)