Infinite loop Affecting io.netty:netty-codec-compression package, versions [4.1.0.Final,4.1.136.Final)[4.2.0.Final,4.2.16.Final)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-IONETTY-18230936
- published23 Jul 2026
- disclosed22 Jul 2026
- creditUnknown
Introduced: 22 Jul 2026
NewCVE-2026-59901 (opens in a new tab)How to fix?
Upgrade io.netty:netty-codec-compression to version 4.1.136.Final, 4.2.16.Final or higher.
Overview
Affected versions of this package are vulnerable to Infinite loop in the Bzip2Decoder handler's run-length encoding state machine. An attacker can cause the event-loop thread to hang indefinitely by supplying a specially crafted bzip2 stream that triggers an infinite loop during decompression.