GO-2026-4977

Quadratic string concatenation in consumePhrase in net/mail

At a glance

Published
Updated
CVE
CVE-2026-42499
Aliases
BIT-golang-2026-42499

Description

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

Affected packages

PackageVersions
Go · stdlibintroduced 0, fixed 1.25.10, introduced 1.26.0-0, fixed 1.26.3

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — Go Vulnerability Database