Integer Overflow or Wraparound Affecting cert-exporter package, versions <2.18.0-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-CERTEXPORTER-17248718
  • published9 Jun 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

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

How to fix?

Upgrade Minimos:latest cert-exporter to version 2.18.0-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cert-exporter package and not the cert-exporter 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.