CVE-2026-27137

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Source
https://cve.org/CVERecord?id=CVE-2026-27137
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-27137.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-27137
Aliases
Downstream
Related
Published
2026-03-06T21:28:13.748Z
Modified
2026-05-31T18:29:20.164724298Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Incorrect enforcement of email constraints in crypto/x509
Details

When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be considered.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27137.json",
    "cna_assigner": "Go",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "1.26.0-0"
                },
                {
                    "fixed": "1.26.1"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/golang/go

Affected ranges

Type
GIT
Repo
https://github.com/golang/go
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
d90b98e65320778f3b1f99a6951ab20f04d218b3
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.26.0"
        }
    ],
    "cpe": "cpe:2.3:a:golang:go:1.26.0:*:*:*:*:*:*:*",
    "source": "CPE_STRING"
}

Affected versions

go1.*
go1.10beta1
go1.10beta2
go1.10rc1
go1.10rc2
go1.11beta1
go1.11beta2
go1.11beta3
go1.12beta1
go1.12beta2
go1.13beta1
go1.14beta1
go1.15beta1
go1.16beta1
go1.17beta1
go1.18beta1
go1.18beta2
go1.19beta1
go1.26.0
go1.26rc1
go1.26rc2
go1.26rc3
go1.3beta1
go1.3beta2
go1.4beta1
go1.5beta1
go1.5beta2
go1.5beta3
go1.6beta1
go1.6beta2
go1.7beta1
go1.7beta2
go1.7rc1
go1.7rc2
go1.7rc3
go1.7rc4
go1.8beta1
go1.8beta2
go1.9beta1
go1.9beta2
release.*
release.r56
Other
weekly
weekly.*
weekly.2009-11-06
weekly.2009-11-10
weekly.2009-11-10.1
weekly.2009-11-12
weekly.2009-11-17
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weekly.2010-10-20
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weekly.2011-02-01.1
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weekly.2011-09-01
weekly.2011-09-07
weekly.2011-09-16
weekly.2011-09-21
weekly.2011-10-06
weekly.2011-10-18
weekly.2011-10-25
weekly.2011-10-26
weekly.2011-11-01
weekly.2011-11-02
weekly.2011-11-08
weekly.2011-11-09
weekly.2011-11-18
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weekly.2011-12-06
weekly.2011-12-14
weekly.2011-12-22
weekly.2012-01-15
weekly.2012-01-20
weekly.2012-01-27
weekly.2012-02-07
weekly.2012-02-14
weekly.2012-02-22
weekly.2012-03-04
weekly.2012-03-13
weekly.2012-03-22
weekly.2012-03-27

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-27137.json"