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
Configurations
History
30 Jul 2026, 12:18
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24 Jul 2026, 22:10
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21 Jul 2026, 12:18
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17 Jul 2026, 13:18
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16 Jul 2026, 12:17
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15 Jul 2026, 12:17
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09 Jul 2026, 13:16
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02 Jul 2026, 12:17
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30 Jun 2026, 03:18
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| CWE | CWE-1289 | |
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20 Apr 2026, 18:16
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19 Apr 2026, 23:16
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| References | () https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU - Mailing List, Release Notes |
17 Apr 2026, 20:41
| Type | Values Removed | Values Added |
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| References | () https://go.dev/cl/763763 - Patch | |
| References | () https://go.dev/issue/78332 - Issue Tracking | |
| References | () https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU - Release Notes, Mailing List | |
| References | () https://pkg.go.dev/vuln/GO-2026-4866 - Vendor Advisory | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.2 |
| CWE | CWE-295 | |
| CPE | cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* | |
| First Time |
Golang go
Golang |
13 Apr 2026, 19:16
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
08 Apr 2026, 02:16
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| New CVE |
Information
Published : 2026-04-08 02:16
Updated : 2026-08-04 13:18
NVD link : CVE-2026-33810
Mitre link : CVE-2026-33810
CVE.ORG link : CVE-2026-33810
JSON object : View
Products Affected
golang
- go
