CVE-2026-50009
Description
Netty is a network application framework for development of protocol servers and clients. Prior to version 4.2.15.Final, Netty QUIC exposes the stateless reset token on the network path when using the default HMAC-based connection-ID and stateless-reset-token generators. The reset token for the server's current source connection ID can be derived from bytes that appear as the connection ID in QUIC headers after a source-CID rotation. An on-path attacker observing the headers can use the token to perform a Denial of Service by sending a spoofed Stateless Reset packet. Version 4.2.15.Final patches the issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
io.netty:netty-codec-classes-quicMaven | >= 4.2.0.Final, < 4.2.15.Final | 4.2.15.Final |
Affected products
4- osv-coords2 versions
< 2.18.0-r6+ 1 more
- (no CPE)range: < 2.18.0-r6
- (no CPE)range: >= 4.2.0.Final, < 4.2.15.Final
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-cq4q-cv5g-r8q5ghsaADVISORY
- github.com/netty/netty/security/advisories/GHSA-cq4q-cv5g-r8q5nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-50009ghsaADVISORY
- github.com/netty/netty/releases/tag/netty-4.2.15.FinalnvdRelease NotesWEB
News mentions
0No linked articles in our index yet.