CVE-2026-56817

Katalog CVE

CVSS 9.8 · Critical EPSS 0,69%

Kerentanan Improper Restriction of XML External Entity Reference pada netty. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active depending on Aalto XML async parser behavior and creating conditional XML external entity risk. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

Rincian

Terbit di NVD

21 Juli 2026

Terakhir diubah

30 Juli 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-611: Improper Restriction of XML External Entity Reference

EPSS (30 hari)

0,69% peluang dieksploitasi; lebih tinggi dari 51,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/netty/netty/security/advisories/GHSA-4qhr-g3c6-fcfx advisory vendor
• https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b patch
• https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6 patch
• https://github.com/netty/netty/releases/tag/netty-4.1.136.Final release notes
• https://github.com/netty/netty/releases/tag/netty-4.2.16.Final release notes