CVE-2026-27137

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-27137
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://go.dev/cl/752182 Mailing List
https://go.dev/issue/77952 Issue Tracking
https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk Release Notes
https://pkg.go.dev/vuln/GO-2026-4599 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:golang:go:1.26.0:*:*:*:*:*:*:*
History

21 Apr 2026, 14:40

Type Values Removed Values Added
CPE cpe:2.3:a:golang:go:1.26.0:*:*:*:*:*:*:*
First Time Golang go
Golang
References () https://go.dev/cl/752182 - () https://go.dev/cl/752182 - Mailing List
References () https://go.dev/issue/77952 - () https://go.dev/issue/77952 - Issue Tracking
References () https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk - () https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk - Release Notes
References () https://pkg.go.dev/vuln/GO-2026-4599 - () https://pkg.go.dev/vuln/GO-2026-4599 - Vendor Advisory
CWE CWE-295

10 Mar 2026, 18:18

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
Summary
  • (es) Al verificar una cadena de certificados que contiene un certificado con múltiples restricciones de dirección de correo electrónico que comparten porciones locales comunes pero porciones de dominio diferentes, estas restricciones no se aplicarán correctamente, y solo la última restricción será considerada.

06 Mar 2026, 22:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-03-06 22:16

Updated : 2026-04-21 14:40

NVD link : CVE-2026-27137

Mitre link : CVE-2026-27137

CVE.ORG link : CVE-2026-27137

JSON object : View

Products Affected

golang

  • go
CWE
CWE-295

Improper Certificate Validation