CVE-2026-56818

Katalog CVE

CVSS 6.5 · Medium EPSS 0,47%

Kerentanan Missing Release of Memory after Effective Lifetime pada netty. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, the RedisArrayAggregator Redis codec clears retained partial aggregate state when the maxNestedArrayDepth limit is exceeded, but it does not clear the same state when the sibling maxElements limit is exceeded. A peer can start a valid RESP array, send a bulk string child, then send a nested array header longer than the configured maxElements. Netty throws a decoder exception in decodeRedisArrayHeader, but the existing partial aggregate remains retained in the handler. If the application leaves the channel alive after the exception, later messages are still consumed into the pre-error aggregate, allowing an unauthenticated peer to keep attacker-controlled aggregate state alive across a security-limit exception and pin retained pooled buffers. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

Rincian

Terbit di NVD

7 Agustus 2026

Terakhir diubah

23 September 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-401: Missing Release of Memory after Effective Lifetime
CWE-703: Improper Check or Handling of Exceptional Conditions

EPSS (30 hari)

0,47% peluang dieksploitasi; lebih tinggi dari 39,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/netty/netty/security/advisories/GHSA-p9jm-q85p-7mcp exploit · advisory vendor
• https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b patch
• https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 patch
• https://github.com/netty/netty/pull/17065 issue tracking · patch