Vulnerability DatabaseCVE-2026-27137
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CVE-2026-27137
March 06, 2026
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.
Affected Packages
https://github.com/golang/go.git (GITHUB):
Affected version(s) =go1.26.0 <go1.26.1
Fix Suggestion:
Update to version go1.26.1
Related Resources (4)
https://pkg.go.dev/vuln/GO-2026-4599
https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk
https://go.dev/issue/77952
https://go.dev/cl/752182
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
EPSS
Base Score:
0.01