Incorrect Type Conversion or Cast Affecting cosign package, versions <3.0.6-r5


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.62% (48th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-COSIGN-16961335
  • published28 May 2026
  • disclosed22 May 2026

Introduced: 22 May 2026

CVE-2026-46597  (opens in a new tab)
CWE-704  (opens in a new tab)

How to fix?

Upgrade Chainguard cosign to version 3.0.6-r5 or higher.

NVD Description

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

An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.

CVSS Base Scores

version 3.1