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CVE-2026-42499

HIGH severity · CVSS 7.5
7.5CVSS HIGH

Summary

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%

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

Affected products we track (1)

Go

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: https://go.dev/cl/771520 ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC