Bug 2456338 (CVE-2026-32283) - CVE-2026-32283 crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages
Summary: CVE-2026-32283 crypto/tls: golang: Go crypto/tls: Denial of Service via multi...
Keywords:
Status: NEW
Alias: CVE-2026-32283
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2457798
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-08 02:01 UTC by OSIDB Bzimport
Modified: 2026-05-20 23:53 UTC (History)
143 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:10217 0 None None None 2026-04-23 21:35:57 UTC
Red Hat Product Errata RHSA-2026:10219 0 None None None 2026-04-24 02:33:45 UTC
Red Hat Product Errata RHSA-2026:10704 0 None None None 2026-04-27 02:09:38 UTC
Red Hat Product Errata RHSA-2026:11507 0 None None None 2026-04-29 07:28:18 UTC
Red Hat Product Errata RHSA-2026:11514 0 None None None 2026-04-29 08:02:12 UTC
Red Hat Product Errata RHSA-2026:11704 0 None None None 2026-04-29 13:03:41 UTC
Red Hat Product Errata RHSA-2026:11711 0 None None None 2026-04-29 13:27:15 UTC
Red Hat Product Errata RHSA-2026:11712 0 None None None 2026-04-29 13:09:49 UTC
Red Hat Product Errata RHSA-2026:11863 0 None None None 2026-04-29 17:50:39 UTC
Red Hat Product Errata RHSA-2026:11881 0 None None None 2026-04-29 19:02:25 UTC
Red Hat Product Errata RHSA-2026:14200 0 None None None 2026-05-06 15:29:50 UTC
Red Hat Product Errata RHSA-2026:14391 0 None None None 2026-05-06 21:10:22 UTC
Red Hat Product Errata RHSA-2026:15980 0 None None None 2026-05-11 12:18:07 UTC
Red Hat Product Errata RHSA-2026:16021 0 None None None 2026-05-11 18:31:49 UTC
Red Hat Product Errata RHSA-2026:16024 0 None None None 2026-05-11 16:19:50 UTC
Red Hat Product Errata RHSA-2026:16101 0 None None None 2026-05-11 22:43:12 UTC
Red Hat Product Errata RHSA-2026:16102 0 None None None 2026-05-11 22:43:36 UTC
Red Hat Product Errata RHSA-2026:16875 0 None None None 2026-05-13 07:59:45 UTC
Red Hat Product Errata RHSA-2026:17075 0 None None None 2026-05-13 15:06:02 UTC
Red Hat Product Errata RHSA-2026:17084 0 None None None 2026-05-13 15:36:47 UTC
Red Hat Product Errata RHSA-2026:17287 0 None None None 2026-05-13 19:24:52 UTC
Red Hat Product Errata RHSA-2026:18027 0 None None None 2026-05-18 08:56:33 UTC
Red Hat Product Errata RHSA-2026:18032 0 None None None 2026-05-18 09:21:25 UTC
Red Hat Product Errata RHSA-2026:19126 0 None None None 2026-05-19 16:04:58 UTC
Red Hat Product Errata RHSA-2026:19132 0 None None None 2026-05-19 16:05:49 UTC
Red Hat Product Errata RHSA-2026:19133 0 None None None 2026-05-19 16:06:28 UTC
Red Hat Product Errata RHSA-2026:19134 0 None None None 2026-05-19 16:06:58 UTC
Red Hat Product Errata RHSA-2026:19135 0 None None None 2026-05-19 16:07:54 UTC
Red Hat Product Errata RHSA-2026:19136 0 None None None 2026-05-19 16:10:55 UTC
Red Hat Product Errata RHSA-2026:19137 0 None None None 2026-05-19 16:08:15 UTC
Red Hat Product Errata RHSA-2026:19139 0 None None None 2026-05-19 16:08:47 UTC
Red Hat Product Errata RHSA-2026:19144 0 None None None 2026-05-19 16:09:18 UTC
Red Hat Product Errata RHSA-2026:19156 0 None None None 2026-05-19 16:10:18 UTC
Red Hat Product Errata RHSA-2026:19350 0 None None None 2026-05-19 21:37:43 UTC
Red Hat Product Errata RHSA-2026:19351 0 None None None 2026-05-19 21:38:34 UTC
Red Hat Product Errata RHSA-2026:19352 0 None None None 2026-05-19 21:38:51 UTC
Red Hat Product Errata RHSA-2026:19353 0 None None None 2026-05-19 21:39:38 UTC
Red Hat Product Errata RHSA-2026:19369 0 None None None 2026-05-19 21:41:27 UTC
Red Hat Product Errata RHSA-2026:19450 0 None None None 2026-05-20 01:29:46 UTC
Red Hat Product Errata RHSA-2026:19550 0 None None None 2026-05-20 08:28:46 UTC
Red Hat Product Errata RHSA-2026:19634 0 None None None 2026-05-20 13:06:25 UTC
Red Hat Product Errata RHSA-2026:19714 0 None None None 2026-05-20 16:19:29 UTC
Red Hat Product Errata RHSA-2026:19715 0 None None None 2026-05-20 16:20:58 UTC
Red Hat Product Errata RHSA-2026:19719 0 None None None 2026-05-20 16:41:30 UTC
Red Hat Product Errata RHSA-2026:19720 0 None None None 2026-05-20 16:53:53 UTC
Red Hat Product Errata RHSA-2026:19721 0 None None None 2026-05-20 16:48:27 UTC
Red Hat Product Errata RHSA-2026:19722 0 None None None 2026-05-20 16:56:14 UTC
Red Hat Product Errata RHSA-2026:19750 0 None None None 2026-05-20 17:23:07 UTC
Red Hat Product Errata RHSA-2026:19839 0 None None None 2026-05-20 23:53:19 UTC

Description OSIDB Bzimport 2026-04-08 02:01:39 UTC 
If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.
Comment 5 errata-xmlrpc 2026-04-23 21:35:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:10217 https://access.redhat.com/errata/RHSA-2026:10217
Comment 6 errata-xmlrpc 2026-04-24 02:33:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:10219 https://access.redhat.com/errata/RHSA-2026:10219
Comment 7 errata-xmlrpc 2026-04-27 02:09:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:10704 https://access.redhat.com/errata/RHSA-2026:10704
Comment 8 errata-xmlrpc 2026-04-29 07:28:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:11507 https://access.redhat.com/errata/RHSA-2026:11507
Comment 9 errata-xmlrpc 2026-04-29 08:02:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:11514 https://access.redhat.com/errata/RHSA-2026:11514
Comment 12 errata-xmlrpc 2026-04-29 13:03:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:11704 https://access.redhat.com/errata/RHSA-2026:11704
Comment 13 errata-xmlrpc 2026-04-29 13:09:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:11712 https://access.redhat.com/errata/RHSA-2026:11712
Comment 14 errata-xmlrpc 2026-04-29 13:27:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:11711 https://access.redhat.com/errata/RHSA-2026:11711
Comment 15 errata-xmlrpc 2026-04-29 17:50:31 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:11863 https://access.redhat.com/errata/RHSA-2026:11863
Comment 16 errata-xmlrpc 2026-04-29 19:02:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:11881 https://access.redhat.com/errata/RHSA-2026:11881
Comment 19 errata-xmlrpc 2026-05-06 15:29:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:14200 https://access.redhat.com/errata/RHSA-2026:14200
Comment 20 errata-xmlrpc 2026-05-06 21:10:12 UTC 
This issue has been addressed in the following products:

  Cryostat 4 on RHEL 9

Via RHSA-2026:14391 https://access.redhat.com/errata/RHSA-2026:14391
Comment 21 errata-xmlrpc 2026-05-11 12:17:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:15980 https://access.redhat.com/errata/RHSA-2026:15980
Comment 22 errata-xmlrpc 2026-05-11 16:19:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:16024 https://access.redhat.com/errata/RHSA-2026:16024
Comment 23 errata-xmlrpc 2026-05-11 18:31:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:16021 https://access.redhat.com/errata/RHSA-2026:16021
Comment 24 errata-xmlrpc 2026-05-11 22:43:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:16101 https://access.redhat.com/errata/RHSA-2026:16101
Comment 25 errata-xmlrpc 2026-05-11 22:43:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:16102 https://access.redhat.com/errata/RHSA-2026:16102
Comment 26 errata-xmlrpc 2026-05-13 07:59:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:16875 https://access.redhat.com/errata/RHSA-2026:16875
Comment 27 errata-xmlrpc 2026-05-13 15:05:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:17075 https://access.redhat.com/errata/RHSA-2026:17075
Comment 28 errata-xmlrpc 2026-05-13 15:36:40 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:17084 https://access.redhat.com/errata/RHSA-2026:17084
Comment 29 errata-xmlrpc 2026-05-13 19:24:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:17287 https://access.redhat.com/errata/RHSA-2026:17287
Comment 30 errata-xmlrpc 2026-05-18 08:56:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:18027 https://access.redhat.com/errata/RHSA-2026:18027
Comment 31 errata-xmlrpc 2026-05-18 09:21:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:18032 https://access.redhat.com/errata/RHSA-2026:18032
Comment 32 errata-xmlrpc 2026-05-19 16:04:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19126 https://access.redhat.com/errata/RHSA-2026:19126
Comment 33 errata-xmlrpc 2026-05-19 16:05:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19132 https://access.redhat.com/errata/RHSA-2026:19132
Comment 34 errata-xmlrpc 2026-05-19 16:06:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19133 https://access.redhat.com/errata/RHSA-2026:19133
Comment 35 errata-xmlrpc 2026-05-19 16:06:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19134 https://access.redhat.com/errata/RHSA-2026:19134
Comment 36 errata-xmlrpc 2026-05-19 16:07:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19135 https://access.redhat.com/errata/RHSA-2026:19135
Comment 37 errata-xmlrpc 2026-05-19 16:08:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19137 https://access.redhat.com/errata/RHSA-2026:19137
Comment 38 errata-xmlrpc 2026-05-19 16:08:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19139 https://access.redhat.com/errata/RHSA-2026:19139
Comment 39 errata-xmlrpc 2026-05-19 16:09:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19144 https://access.redhat.com/errata/RHSA-2026:19144
Comment 40 errata-xmlrpc 2026-05-19 16:10:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19156 https://access.redhat.com/errata/RHSA-2026:19156
Comment 41 errata-xmlrpc 2026-05-19 16:10:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19136 https://access.redhat.com/errata/RHSA-2026:19136
Comment 42 errata-xmlrpc 2026-05-19 21:37:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19350 https://access.redhat.com/errata/RHSA-2026:19350
Comment 43 errata-xmlrpc 2026-05-19 21:38:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19351 https://access.redhat.com/errata/RHSA-2026:19351
Comment 44 errata-xmlrpc 2026-05-19 21:38:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19352 https://access.redhat.com/errata/RHSA-2026:19352
Comment 45 errata-xmlrpc 2026-05-19 21:39:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19353 https://access.redhat.com/errata/RHSA-2026:19353
Comment 46 errata-xmlrpc 2026-05-19 21:41:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19369 https://access.redhat.com/errata/RHSA-2026:19369
Comment 47 errata-xmlrpc 2026-05-20 01:29:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19450 https://access.redhat.com/errata/RHSA-2026:19450
Comment 48 errata-xmlrpc 2026-05-20 08:28:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19550 https://access.redhat.com/errata/RHSA-2026:19550
Comment 49 errata-xmlrpc 2026-05-20 13:06:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:19634 https://access.redhat.com/errata/RHSA-2026:19634
Comment 50 errata-xmlrpc 2026-05-20 16:19:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19714 https://access.redhat.com/errata/RHSA-2026:19714
Comment 51 errata-xmlrpc 2026-05-20 16:20:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19715 https://access.redhat.com/errata/RHSA-2026:19715
Comment 52 errata-xmlrpc 2026-05-20 16:41:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19719 https://access.redhat.com/errata/RHSA-2026:19719
Comment 53 errata-xmlrpc 2026-05-20 16:48:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:19721 https://access.redhat.com/errata/RHSA-2026:19721
Comment 54 errata-xmlrpc 2026-05-20 16:53:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:19720 https://access.redhat.com/errata/RHSA-2026:19720
Comment 55 errata-xmlrpc 2026-05-20 16:56:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:19722 https://access.redhat.com/errata/RHSA-2026:19722
Comment 56 errata-xmlrpc 2026-05-20 17:22:59 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:19750 https://access.redhat.com/errata/RHSA-2026:19750
Comment 57 errata-xmlrpc 2026-05-20 23:53:12 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:19839 https://access.redhat.com/errata/RHSA-2026:19839
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