GHSA-6jv9-x5w9-2ccm
Netty's Lack of Lifecycle Cleanup Leads to Pooled ByteBuf Leak in RedisArrayAggregator
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2026-48006
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS_V4
- 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
Description
### Impact The RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state (`depths` field) but defines no `channelInactive`, `handlerRemoved`, or `exceptionCaught` method to release them when the pipeline tears down. Because the leaked buffers are slices of `PooledByteBufAllocator` chunks, they prevent those chunks from being returned to the JVM-wide direct-memory pool. Repeated connection churn by any network peer monotonically drains this shared pool, eventually causing allocation failures on all Netty channels in the process.
Paquets affectés
| Paquet | Versions |
|---|---|
| Maven · io.netty:netty-codec-redis | introduced 4.2.0.Final, fixed 4.2.15.Final |
| Maven · io.netty:netty-codec-redis | introduced 0, fixed 4.1.135.Final |
Références
- https://github.com/netty/netty/security/advisories/GHSA-6jv9-x5w9-2ccm WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-48006 ADVISORY
- https://access.redhat.com/errata/RHSA-2026:37390 WEB
- https://access.redhat.com/errata/RHSA-2026:41951 WEB
- https://access.redhat.com/errata/RHSA-2026:50085 WEB
- https://access.redhat.com/errata/RHSA-2026:53644 WEB
- https://access.redhat.com/errata/RHSA-2026:53645 WEB
- https://access.redhat.com/errata/RHSA-2026:53646 WEB
- https://access.redhat.com/errata/RHSA-2026:53806 WEB
- https://access.redhat.com/security/cve/CVE-2026-48006 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2488433 WEB
- https://github.com/netty/netty PACKAGE
- https://github.com/netty/netty/releases/tag/netty-4.1.135.Final WEB
- https://github.com/netty/netty/releases/tag/netty-4.2.15.Final WEB
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48006.json WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |