Bug 2456339 (CVE-2026-32280) - CVE-2026-32280 crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building
Summary: CVE-2026-32280 crypto/x509: crypto/tls: golang: Go: Denial of Service vulnera...
Keywords:
Status: NEW
Alias: CVE-2026-32280
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: 2457792
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-08 02:01 UTC by OSIDB Bzimport
Modified: 2026-05-13 19:25 UTC (History)
130 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 02:33:44 UTC
Red Hat Product Errata RHSA-2026:10704 0 None None None 2026-04-27 02:09:39 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 08:02:13 UTC
Red Hat Product Errata RHSA-2026:14200 0 None None None 2026-05-06 15:29:54 UTC
Red Hat Product Errata RHSA-2026:14391 0 None None None 2026-05-06 21:10:20 UTC
Red Hat Product Errata RHSA-2026:15980 0 None None None 2026-05-11 12:18:14 UTC
Red Hat Product Errata RHSA-2026:16021 0 None None None 2026-05-11 18:31:51 UTC
Red Hat Product Errata RHSA-2026:16024 0 None None None 2026-05-11 16:19:48 UTC
Red Hat Product Errata RHSA-2026:16875 0 None None None 2026-05-13 08:00:00 UTC
Red Hat Product Errata RHSA-2026:17084 0 None None None 2026-05-13 15:36:48 UTC
Red Hat Product Errata RHSA-2026:17287 0 None None None 2026-05-13 19:25:07 UTC

Description OSIDB Bzimport 2026-04-08 02:01:42 UTC 
During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
Comment 2 errata-xmlrpc 2026-04-23 21:35:51 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 3 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 4 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 5 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 6 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 9 errata-xmlrpc 2026-05-06 15:29:44 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 10 errata-xmlrpc 2026-05-06 21:10:11 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 11 errata-xmlrpc 2026-05-11 12:18:05 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 12 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 13 errata-xmlrpc 2026-05-11 18:31:42 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 14 errata-xmlrpc 2026-05-13 07:59:53 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 15 errata-xmlrpc 2026-05-13 15:36:42 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 16 errata-xmlrpc 2026-05-13 19:25:01 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
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