netty-codec-http2 vulnerabilities
CVEs whose affected-version data names the netty-codec-http2 package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
5 CVEsRSS
CVE-2026-93579Medium· 6.5A flaw was found in Netty's HTTP/2 stack
A flaw was found in Netty's HTTP/2 stack. This vulnerability allows a remote attacker to inject prohibited characters, such as NUL, Line Feed, and Carriage Return, into HTTP/2 header field values due to insufficient validation. When thes…
CVE-2026-93567High· 7.5A flaw was found in Netty's HTTP/2 codec
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 …
CVE-2026-93568High· 7.5A flaw was found in Netty
A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 Extended CONNECT requests. Netty's HTTP-object conversion path incorrectly processes these requests as regular HT…
CVE-2026-93569High· 8.2A flaw was found in Netty
A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in Netty's HTTP/1 to HTTP/2 conversion process. When an HTTP/1 request includes both an absolute-form request-target and a conflicting Host header, …
CVE-2026-93492Medium· 5.3A flaw was found in Netty's HTTP/2 HpackEncoder
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, l…