Improper Validation of Unsafe Equivalence in Input The advisory has been revoked - it doesn't affect any version of package osbuild-composer-core (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS8-OSBUILDCOMPOSERCORE-16055918
- published15 Apr 2026
- disclosed8 Apr 2026
Introduced: 8 Apr 2026
CVE-2026-33810 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream osbuild-composer-core package and not the osbuild-composer-core package as distributed by Centos.
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.
References
- https://access.redhat.com/security/cve/CVE-2026-33810
- https://go.dev/cl/763763
- https://go.dev/issue/78332
- https://pkg.go.dev/vuln/GO-2026-4866
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU
- http://www.openwall.com/lists/oss-security/2026/04/19/4
- http://www.openwall.com/lists/oss-security/2026/04/20/1