Integer Overflow or Wraparound Affecting zot package, versions <2.1.17-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.53% (42nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-ZOT-17370447
  • published18 Jun 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-39834  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Minimos:latest zot to version 2.1.17-r1 or higher.

NVD Description

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

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation.

CVSS Base Scores

version 3.1