HIGH 8.7 NVD

CVE-2026-59901

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the `Bzip2Decoder` handler in Netty's co

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, the `Bzip2Decoder` handler in Netty's compression codec pipeline is vulnerable to a denial-of-service attack through a malformed bzip2 stream that permanently captures the event-loop thread in an infinite loop. The vulnerability exists in the run-length encoding (RLE) state machine within [`Bzip2BlockDecompressor.read()`]. This issue has been fixed in versions 4.1.136.Final and 4.2.16.Final.

References

https://github.com/netty/netty/security/advisories/GHSA-558v-64gr-wgg4

Published: 2026-07-29 · Source: NVD · Feed updated: 2026-08-04

This high severity vulnerability with a CVSS score of 8.7 was published on 2026-07-29 via NVD.

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