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CVE-2026-33810

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CVSS 3.1
8.2 high
EPSS
<1%p27
Published
()
Modified
Description

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.

Vendors
golang
Products
go
Weakness
CWE-295, CWE-1289
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news

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