HIGHCVE-2026-27137Published Modified CNA Go
CVE-2026-27137: Incorrect enforcement of email constraints in crypto/x509
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.
Metrics
- CVSS v3.1
- 7.5
- Severity
- HIGH
- Fixed in
- 1.26.1
- Affected Products
- 1
Fix available
1.26.1
Affected packages
- Go standard library / crypto/x509< 1.26.1 (from 1.26.0-0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences