CVE-2026-27145 Affecting crossplane-provider-aws-cloudformation package, versions <2.5.0-r10


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.33% (24th percentile)

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  • Snyk IDSNYK-WOLFILATEST-CROSSPLANEPROVIDERAWSCLOUDFORMATION-17253349
  • published9 Jun 2026
  • disclosed2 Jun 2026

Introduced: 2 Jun 2026

NewCVE-2026-27145  (opens in a new tab)

How to fix?

Upgrade Wolfi crossplane-provider-aws-cloudformation to version 2.5.0-r10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream crossplane-provider-aws-cloudformation package and not the crossplane-provider-aws-cloudformation package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries. This caused strings.Split(host, ".") to execute repeatedly on the same input hostname. With a large DNS SAN list, verification costs scaled quadratically based on the number of SAN entries multiplied by the hostname's label count. Because x509.Verify validates hostnames before building the certificate chain, this overhead occurred even for untrusted certificates.

CVSS Base Scores

version 3.1