CVE Watch10 jul 2026

CVE-2026-42582

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final, when decoding header blocks, the non-Huffman br

CVSS

7.5

Alto

EPSS

0.4%

p35

KEV

—

Exploit Today

0-100

Publicado: 13 may 2026 · Última mod.: 10 jul 2026 · CWE-770 · CWE-789

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-06-302026-07-18

Descripción técnica

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final, when decoding header blocks, the non-Huffman branch of io.netty.handler.codec.http3.QpackDecoder#decodeHuffmanEncodedLiteral may execute new byte[length] for a string literal before verifying that length bytes are actually present in the compressed field section. The wire encoding allows a very large length to be expressed in few bytes. There is no check that length <= in.readableBytes() before new byte[length]. This vulnerability is fixed in 4.2.13.Final.

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