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Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Thu, 30 Apr 2026 19:15:00 +0000
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ssvc
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Thu, 30 Apr 2026 18:00:00 +0000
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| Description | A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `nameConstraints` labels, specifically for `dNSName` (DNS) or `rfc822Name` (email) constraints within `excludedSubtrees` or `permittedSubtrees`. A remote attacker can exploit this by crafting a leaf certificate with casing differences in the Subject Alternative Name (SAN), leading to a policy bypass where a certificate that should be rejected is instead accepted. This could result in unauthorized access or information disclosure. | |
| Title | Gnutls: gnutls: policy bypass due to case-sensitive nameconstraints comparison | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| Weaknesses | CWE-178 | |
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-04-30T18:37:57.245Z
Reserved: 2026-03-09T14:00:51.698Z
Link: CVE-2026-3833
Updated: 2026-04-30T18:37:51.941Z
Status : Awaiting Analysis
Published: 2026-04-30T18:16:30.577
Modified: 2026-04-30T19:16:09.663
Link: CVE-2026-3833
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OpenCVE Enrichment
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