Medium severity5.3NVD Advisory· Published Sep 18, 2026
CVE-2026-93492
CVE-2026-93492
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).
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Affected products
1Patches
Vulnerability mechanics
References
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