Improper Resource Shutdown or Release in Netty - CVE-2026-48006
Published: June 8, 2026
Vulnerability identifier: #VU133443
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-48006
CWE-ID: CWE-404
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Netty project
Affected software:
Netty
Netty
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in RedisArrayAggregator when a Redis pipeline connection closes before a RESP array aggregate completes. A remote attacker can repeatedly open and close connections to cause a denial of service.
The issue leaks pooled direct-memory buffers retained in per-handler state, which can exhaust the shared direct-memory pool and trigger allocation failures across Netty channels in the same process.
How to mitigate CVE-2026-48006
Install security update from vendor's website.