GHSA-q4f6-jm68-57ww

Netty: [HttpContentEncoder] Unbounded Per-Connection Queue Growth via HTTP/1.1 Pipelining Leads to Denial of Service

En bref

Publiée
Mise à jour
CVE
CVE-2026-59899
CVSS_V4
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Description

### Impact `HttpContentEncoder` (the superclass of the production handler `HttpContentCompressor`) maintains a per-channel `ArrayDeque<CharSequence>` named `acceptEncodingQueue` that accumulates attacker-controlled data without any size limit. The queue is filled on the I/O thread for every inbound HTTP request and drained only when the application later writes a non-1xx response. This creates a resource exhaustion vulnerability when an attacker exploits HTTP/1.1 pipelining to flood the connection with requests faster than the application produces responses.

Paquets affectés

PaquetVersions
Maven · io.netty:netty-codec-httpintroduced 4.2.0.Final, fixed 4.2.16.Final
Maven · io.netty:netty-codec-httpintroduced 0, fixed 4.1.136.Final

Références

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database