xiaoqiMikko/netty-http2-check

PoC

CVE-2025-55163 / CVE-2026-56819: offline checker for the 7 netty-codec-http2 CVEs. Tells you which ones you are exposed to, and the one version that fixes all seven (4.1.136.Final / 4.2.16.Final) - written on none of the advisories. Does not scan pom.xml on purpose: WebFlux pulls it in transitively.

view exploit source poc_in_githubauthor xiaoqiMikkopublished 2026-09-05catalog poc_in_github

exploited CVEs (2)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2026-56819US	—	0.66% (51st)	Exploit	2026-07-21
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remo…
CVE-2025-55163US	high7.5	1.10% (65th)	Exploit	2025-08-13
Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical v…

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