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

Project Subscriptions

Vendors Products
Go Standard Library Subscribe
Net\/mail Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
Link Providers
https://access.redhat.com/errata/RHSA-2026:17713 cve-icon
https://access.redhat.com/errata/RHSA-2026:17714 cve-icon
https://access.redhat.com/errata/RHSA-2026:33120 cve-icon
https://access.redhat.com/errata/RHSA-2026:33123 cve-icon
https://access.redhat.com/errata/RHSA-2026:33142 cve-icon
https://access.redhat.com/errata/RHSA-2026:33150 cve-icon
https://access.redhat.com/errata/RHSA-2026:33574 cve-icon
https://access.redhat.com/errata/RHSA-2026:34364 cve-icon
https://access.redhat.com/errata/RHSA-2026:36319 cve-icon
https://access.redhat.com/errata/RHSA-2026:36625 cve-icon
https://access.redhat.com/errata/RHSA-2026:36754 cve-icon
https://access.redhat.com/errata/RHSA-2026:36797 cve-icon
https://access.redhat.com/errata/RHSA-2026:40262 cve-icon
https://access.redhat.com/errata/RHSA-2026:41031 cve-icon
https://access.redhat.com/errata/RHSA-2026:41066 cve-icon
https://access.redhat.com/errata/RHSA-2026:41928 cve-icon
https://access.redhat.com/errata/RHSA-2026:42146 cve-icon
https://access.redhat.com/errata/RHSA-2026:42644 cve-icon
https://access.redhat.com/errata/RHSA-2026:42796 cve-icon
https://access.redhat.com/errata/RHSA-2026:43038 cve-icon
https://access.redhat.com/errata/RHSA-2026:43052 cve-icon
https://access.redhat.com/errata/RHSA-2026:43692 cve-icon
https://access.redhat.com/errata/RHSA-2026:47952 cve-icon
https://access.redhat.com/errata/RHSA-2026:50300 cve-icon
https://access.redhat.com/errata/RHSA-2026:50843 cve-icon
https://access.redhat.com/errata/RHSA-2026:51033 cve-icon
https://access.redhat.com/errata/RHSA-2026:54283 cve-icon
https://access.redhat.com/errata/RHSA-2026:54285 cve-icon
https://access.redhat.com/errata/RHSA-2026:54287 cve-icon
https://access.redhat.com/security/cve/CVE-2026-42499 cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2467809 cve-icon
https://go.dev/cl/771520 cve-icon cve-icon
https://go.dev/issue/78987 cve-icon cve-icon
https://groups.google.com/g/golang-announce/c/qcCIEXso47M cve-icon cve-icon
https://pkg.go.dev/vuln/GO-2026-4977 cve-icon cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42499.json cve-icon
History

Wed, 12 Aug 2026 12:30:00 +0000


Wed, 13 May 2026 21:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-229
CWE-730

Wed, 13 May 2026 19:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-674
CWE-729

Wed, 13 May 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Golang
Golang go
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
Vendors & Products Golang
Golang go

Fri, 08 May 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 07 May 2026 22:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-674
CWE-729

Thu, 07 May 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Go Standard Library
Go Standard Library net\/mail
Vendors & Products Go Standard Library
Go Standard Library net\/mail

Thu, 07 May 2026 20:00:00 +0000

Type Values Removed Values Added
Description Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.
Title Quadratic string concatenation in consumePhrase in net/mail
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Go

Published:

Updated: 2026-08-12T12:04:41.397Z

Reserved: 2026-04-28T00:21:12.791Z

Link: CVE-2026-42499

cve-icon Vulnrichment

Updated: 2026-08-12T12:04:41.397Z

cve-icon NVD

Status : Modified

Published: 2026-05-07T20:16:44.540

Modified: 2026-08-12T12:19:15.637

Link: CVE-2026-42499

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-13T20:45:04Z