CVE-2026-93579
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/09/2026
Last modified:
12/10/2026
Description
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 these values cross an HTTP/2 to HTTP/1.1 translation boundary, they can be exploited for request smuggling, header injection, or response splitting. This could lead to unauthorized access, data manipulation, or other security bypasses.
Impact
Base Score 3.x
6.50
Severity 3.x
MEDIUM