Loop with Unreachable Exit Condition ('Infinite Loop') Affecting s3proxy package, versions <3.3.0-r5


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-S3PROXY-18280386
  • published24 Jul 2026
  • disclosed29 Jul 2026

Introduced: 24 Jul 2026

CVE-2026-59901  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Chainguard s3proxy to version 3.3.0-r5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream s3proxy package and not the s3proxy package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1