CVEvulnerability

CVE-2026-50009

4.8 MEDIUM Published 2026-06-12 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-06-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Weaknesses
CWE-200, CWE-330

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.

Affected configurations

• netty netty (>= 4.2.0 < 4.2.15)

Related

Weakness · CWE (2)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-330 Use of Insufficiently Random Values weakness

References