SecuriTricks - 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.

Product(s) Impacted

Vendor	Product	Versions
Netty	Netty	<4.2.15.Final

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	netty	netty	<4.2.15.Final	/	/	/	/	/	/	/

References

https://github.com/netty/netty/releases/tag/netty-4.2.15.Final

https://github.com/netty/netty/security/advisories/GHSA-cq4q-cv5g-r8q5

CVSS Score

4.8 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: NONE
Availability Impact: LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

View Vector String

Timeline

Published: June 12, 2026, 4:16 p.m.
Last Modified: June 12, 2026, 4:18 p.m.

Status : Undergoing Analysis

CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.

More info

Source

[email protected]

CVE-2026-50009