Use of a Key Past its Expiration Date Affecting commercial-kyverno-1.17 package, versions <1.17.2-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-COMMERCIALKYVERNO117-20261339
  • published29 Sept 2026
  • disclosed31 Jul 2026

Introduced: 31 Jul 2026

CVE-2026-54787  (opens in a new tab)
CWE-324  (opens in a new tab)

How to fix?

Upgrade Chainguard commercial-kyverno-1.17 to version 1.17.2-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream commercial-kyverno-1.17 package and not the commercial-kyverno-1.17 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

sigstore-go is a Go library for Sigstore signing and verification. Prior to 1.2.1, sigstore-go does not check a bundle signing timestamp against the validity window of an ExpiringKey wrapping a self-managed long-lived signing key without a certificate, which can allow an attacker holding expired key material to sign accepted bundles. This issue is fixed in version 1.2.1.

CVSS Base Scores

version 3.1