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CVE-2026-42582 Netty is an asynchronous, event-driven network application framework

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
netty 4.2 4.2.0.Alpha1 → < 4.2.13.Final 4.2.13.Final
netty-codec-http3 4.2 4.2.0.Alpha1 → < 4.2.13.Final 4.2.13.Final

Références

Chronologie

  1. Publiée
  2. Dernière modification

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