Lucene search
K

CVE-2026-27137 Incorrect enforcement of email constraints in crypto/x509

🗓️ 06 Mar 2026 21:28:13Reported by GoType 
cvelist
 cvelist
🔗 www.cve.org👁 17 Views

Incorrect email constraint enforcement in certificate chain verification; multiple constraints with the same local part and different domains are applied only as the last one.

Related
Affected
Refs
[
  {
    "vendor": "Go standard library",
    "product": "crypto/x509",
    "collectionURL": "https://pkg.go.dev",
    "packageName": "crypto/x509",
    "versions": [
      {
        "version": "1.26.0-0",
        "lessThan": "1.26.1",
        "status": "affected",
        "versionType": "semver"
      }
    ],
    "programRoutines": [
      {
        "name": "newEmailConstraints"
      },
      {
        "name": "emailConstraints.query"
      },
      {
        "name": "checkConstraints"
      },
      {
        "name": "checkChainConstraints"
      },
      {
        "name": "parseMailboxes"
      },
      {
        "name": "Certificate.Verify"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation