Bug 2467809 (CVE-2026-42499)

Summary: CVE-2026-42499 net/mail: golang: net/mail: Denial of Service via pathological email address parsing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: aazores, abarbaro, akhatavk, akoudelk, alcohan, alebedev, alizardo, amctagga, anjoseph, anpicker, ansmith, anthomas, aoconnor, aos-team-art-private, aruklets, asdas, bbrownin, bdettelb, bniver, ckandaga, cmah, crizzo, dakwon, dhanak, dkeler, doconnor, dpaolell, drosa, dschmidt, dsimansk, dymurray, eaguilar, ebaron, eborisov, eglynn, ehelms, erezende, fdeutsch, flucifre, gbenhaim, ggainey, gmeno, gparvin, groman, hasun, ibolton, jbalunas, jbritton, jcantril, jchui, jdelft, jfula, jhe, jjoyce, jkoehler, jlanda, jmatsuok, jmatthew, jmontleo, jolong, jowilson, jpasqual, jprabhak, jpretori, jschluet, jtolenti, jupierce, juwatts, kaycoth, kingland, kshier, ktsao, kverlaen, lball, lbragsta, lchilton, lgamliel, lgarciaa, lhh, lphiri, lwan, manissin, mbenjamin, mbiarnes, mburns, mdellweg, mgarciac, mhackett, mhulan, mnovotny, mwringe, nboldt, ngough, niyer, nmoumoul, nyancey, oaljalju, ometelka, oramraz, osousa, pahickey, pcreech, peholase, pgaikwad, pjindal, ppalepu, ppostler, prdhamdh, psrna, ptisnovs, pvasanth, rchan, rekumar, rfreiman, rhaigner, rhel-process-autobot, rjohnson, rojacob, sakbas, sausingh, sbratsla, sdawley, sfeifer, sghai, sidsharm, simaishi, slucidi, smallamp, smcdonal, smullick, sostapov, sseago, stcannon, stirabos, suppawar, syedriko, teagle, thason, tmalecek, twaugh, tzivkovi, vereddy, veshanka, vlaad, vvoronko, watson-tool-maintainers, wenshen, whayutin, wtam, xdharmai, xiyuan, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in the `net/mail` package within the Go standard library. A remote attacker could provide specially crafted, pathological email addresses. When these malformed email addresses are parsed by the `consumePhrase` function, it can lead to excessive resource consumption due to quadratic string concatenation, resulting in a Denial of Service (DoS) condition.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-07 20:01:14 UTC
Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

Comment 2 errata-xmlrpc 2026-06-01 00:43:24 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:22120 https://access.redhat.com/errata/RHSA-2026:22120

Comment 3 errata-xmlrpc 2026-06-01 01:00:28 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:22121 https://access.redhat.com/errata/RHSA-2026:22121

Comment 4 errata-xmlrpc 2026-06-01 01:04:27 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:22112 https://access.redhat.com/errata/RHSA-2026:22112

Comment 5 errata-xmlrpc 2026-08-03 15:58:49 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:49702 https://access.redhat.com/errata/RHSA-2026:49702

Comment 6 errata-xmlrpc 2026-08-03 17:33:27 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:49712 https://access.redhat.com/errata/RHSA-2026:49712

Comment 8 errata-xmlrpc 2026-08-19 15:34:48 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.19

Via RHSA-2026:54552 https://access.redhat.com/errata/RHSA-2026:54552

Comment 9 errata-xmlrpc 2026-08-20 18:47:07 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:57649 https://access.redhat.com/errata/RHSA-2026:57649

Comment 10 errata-xmlrpc 2026-08-26 00:20:55 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.16

Via RHSA-2026:57845 https://access.redhat.com/errata/RHSA-2026:57845

Comment 11 errata-xmlrpc 2026-08-26 09:57:30 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.14

Via RHSA-2026:56785 https://access.redhat.com/errata/RHSA-2026:56785

Comment 12 errata-xmlrpc 2026-08-26 10:47:48 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.18

Via RHSA-2026:57914 https://access.redhat.com/errata/RHSA-2026:57914

Comment 13 errata-xmlrpc 2026-08-26 15:15:50 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.18

Via RHSA-2026:57482 https://access.redhat.com/errata/RHSA-2026:57482

Comment 14 errata-xmlrpc 2026-08-26 15:17:58 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.16

Via RHSA-2026:56852 https://access.redhat.com/errata/RHSA-2026:56852

Comment 15 errata-xmlrpc 2026-08-26 15:35:39 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.15

Via RHSA-2026:56910 https://access.redhat.com/errata/RHSA-2026:56910

Comment 16 errata-xmlrpc 2026-08-31 04:07:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:61253 https://access.redhat.com/errata/RHSA-2026:61253

Comment 17 errata-xmlrpc 2026-09-02 06:46:05 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:62407 https://access.redhat.com/errata/RHSA-2026:62407

Comment 18 errata-xmlrpc 2026-09-02 07:09:58 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:62406 https://access.redhat.com/errata/RHSA-2026:62406

Comment 19 errata-xmlrpc 2026-09-02 16:39:18 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:62754 https://access.redhat.com/errata/RHSA-2026:62754

Comment 20 errata-xmlrpc 2026-09-02 16:55:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:62753 https://access.redhat.com/errata/RHSA-2026:62753

Comment 21 errata-xmlrpc 2026-09-02 19:13:24 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:62803 https://access.redhat.com/errata/RHSA-2026:62803

Comment 22 errata-xmlrpc 2026-09-03 05:31:16 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:63022 https://access.redhat.com/errata/RHSA-2026:63022

Comment 23 errata-xmlrpc 2026-09-03 09:05:53 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.17

Via RHSA-2026:60018 https://access.redhat.com/errata/RHSA-2026:60018

Comment 24 errata-xmlrpc 2026-09-03 12:17:02 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.12

Via RHSA-2026:59830 https://access.redhat.com/errata/RHSA-2026:59830

Comment 25 errata-xmlrpc 2026-09-04 00:43:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:63332 https://access.redhat.com/errata/RHSA-2026:63332

Comment 26 errata-xmlrpc 2026-09-04 00:59:48 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:63163 https://access.redhat.com/errata/RHSA-2026:63163

Comment 27 errata-xmlrpc 2026-09-08 04:39:06 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:64818 https://access.redhat.com/errata/RHSA-2026:64818

Comment 28 errata-xmlrpc 2026-09-08 08:02:06 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:65116 https://access.redhat.com/errata/RHSA-2026:65116

Comment 29 errata-xmlrpc 2026-09-08 10:05:57 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:65117 https://access.redhat.com/errata/RHSA-2026:65117

Comment 30 errata-xmlrpc 2026-09-08 10:44:31 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:65335 https://access.redhat.com/errata/RHSA-2026:65335

Comment 31 errata-xmlrpc 2026-09-08 11:15:07 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:65336 https://access.redhat.com/errata/RHSA-2026:65336

Comment 32 errata-xmlrpc 2026-09-08 11:45:47 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:65153 https://access.redhat.com/errata/RHSA-2026:65153

Comment 33 errata-xmlrpc 2026-09-08 17:06:15 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:65534 https://access.redhat.com/errata/RHSA-2026:65534

Comment 34 errata-xmlrpc 2026-09-09 00:32:15 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.19

Via RHSA-2026:63636 https://access.redhat.com/errata/RHSA-2026:63636

Comment 35 errata-xmlrpc 2026-09-09 10:39:28 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:65886 https://access.redhat.com/errata/RHSA-2026:65886

Comment 36 errata-xmlrpc 2026-09-09 10:49:31 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:65895 https://access.redhat.com/errata/RHSA-2026:65895

Comment 37 errata-xmlrpc 2026-09-10 05:34:02 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:66327 https://access.redhat.com/errata/RHSA-2026:66327

Comment 38 Jon Orris 2026-09-14 13:30:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:67148 https://access.redhat.com/errata/RHSA-2026:67148

Comment 39 Jon Orris 2026-09-15 09:24:01 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:67517 https://access.redhat.com/errata/RHSA-2026:67517

Comment 40 Jon Orris 2026-09-16 12:21:21 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:67974 https://access.redhat.com/errata/RHSA-2026:67974

Comment 41 Jon Orris 2026-09-16 12:35:39 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:67975 https://access.redhat.com/errata/RHSA-2026:67975

Comment 42 Jon Orris 2026-09-16 17:20:15 UTC
This issue has been addressed in the following products:

  RHEM 1.1 for RHEL 10
  RHEM 1.1 for RHEL 9

Via RHSA-2026:68334 https://access.redhat.com/errata/RHSA-2026:68334

Comment 43 Jon Orris 2026-09-17 04:34:03 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:68504 https://access.redhat.com/errata/RHSA-2026:68504

Comment 44 Jon Orris 2026-09-17 06:32:16 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:68527 https://access.redhat.com/errata/RHSA-2026:68527

Comment 45 Jon Orris 2026-09-17 06:42:57 UTC
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.13

Via RHSA-2026:65838 https://access.redhat.com/errata/RHSA-2026:65838

Comment 46 Jon Orris 2026-09-22 13:57:30 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:70201 https://access.redhat.com/errata/RHSA-2026:70201