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CVE-2026-27137

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/6/2026

Last Modified3/10/2026

Sourcenvd

Honeypot Sightings0

References

https://go.dev/cl/752182(security@golang.org)

https://go.dev/issue/77952(security@golang.org)

https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk(security@golang.org)

https://pkg.go.dev/vuln/GO-2026-4599(security@golang.org)

IOC Correlations

No correlations recorded

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