This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-93488 →
DEBIAN-CVE-2026-93488
A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaul...
Original description
The description as published by the source.
A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAX_VALUE and the handler provides no API to change it. A remote peer can open a SPDY connection and send a large number of SYN_STREAM frames with FLAG_FIN=0, causing unbounded heap and direct memory allocation that can lead to JVM OutOfMemoryError and a denial of service.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
netty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
netty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
netty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org