Bug 2515838 (CVE-2026-56858) - CVE-2026-56858 html/template: golang: Go html/template: Cross-Site Scripting via pathological input
Summary: CVE-2026-56858 html/template: golang: Go html/template: Cross-Site Scripting ...
Keywords:
Status: NEW
Alias: CVE-2026-56858
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-13 22:25 UTC by OSIDB Bzimport
Modified: 2026-09-02 12:19 UTC (History)
132 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-2026:60304 0 None None None 2026-08-26 13:56:11 UTC
Red Hat Product Errata RHSA-2026:60305 0 None None None 2026-08-26 13:55:01 UTC
Red Hat Product Errata RHSA-2026:60306 0 None None None 2026-08-26 13:42:19 UTC
Red Hat Product Errata RHSA-2026:61882 0 None None None 2026-09-01 05:39:19 UTC
Red Hat Product Errata RHSA-2026:62404 0 None None None 2026-09-02 06:34:32 UTC
Red Hat Product Errata RHSA-2026:62405 0 None None None 2026-09-02 06:26:57 UTC
Red Hat Product Errata RHSA-2026:62406 0 None None None 2026-09-02 07:10:26 UTC
Red Hat Product Errata RHSA-2026:62407 0 None None None 2026-09-02 06:46:28 UTC
Red Hat Product Errata RHSA-2026:62602 0 None None None 2026-09-02 12:19:05 UTC

Description OSIDB Bzimport 2026-08-13 22:25:12 UTC 
Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS.
Comment 12 errata-xmlrpc 2026-08-26 13:42:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:60306 https://access.redhat.com/errata/RHSA-2026:60306
Comment 13 errata-xmlrpc 2026-08-26 13:54:53 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:60305 https://access.redhat.com/errata/RHSA-2026:60305
Comment 14 errata-xmlrpc 2026-08-26 13:56:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:60304 https://access.redhat.com/errata/RHSA-2026:60304
Comment 15 errata-xmlrpc 2026-09-01 05:39:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:61882 https://access.redhat.com/errata/RHSA-2026:61882
Comment 16 errata-xmlrpc 2026-09-02 06:26:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:62405 https://access.redhat.com/errata/RHSA-2026:62405
Comment 17 errata-xmlrpc 2026-09-02 06:34:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:62404 https://access.redhat.com/errata/RHSA-2026:62404
Comment 18 errata-xmlrpc 2026-09-02 06:46:22 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 19 errata-xmlrpc 2026-09-02 07:10:19 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 20 errata-xmlrpc 2026-09-02 12:18:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:62602 https://access.redhat.com/errata/RHSA-2026:62602
Note You need to log in before you can comment on or make changes to this bug.