Improper Certificate Validation Affecting ctr-1 package, versions <1.7.30-r7


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.01% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-MINIMOSLATEST-CTR1-16040456
  • published14 Apr 2026
  • disclosed8 Apr 2026

Introduced: 8 Apr 2026

CVE-2026-33810  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Minimos:latest ctr-1 to version 1.7.30-r7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ctr-1 package and not the ctr-1 package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

CVSS Base Scores

version 3.1