Improper Validation of Unsafe Equivalence in Input Affecting osbuild-composer-dnf-json package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-RHEL9-OSBUILDCOMPOSERDNFJSON-16055317
  • published15 Apr 2026
  • disclosed8 Apr 2026

Introduced: 8 Apr 2026

NewCVE-2026-33810  (opens in a new tab)
CWE-1289  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 osbuild-composer-dnf-json.

NVD Description

Note: Versions mentioned in the description apply only to the upstream osbuild-composer-dnf-json package and not the osbuild-composer-dnf-json package as distributed by RHEL. See How to fix? for RHEL:9 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