Bug 1932362 (CVE-2021-26539) - CVE-2021-26539 sanitize-html: improper handling of internationalized domain name (IDN) can lead to bypass hostname whitelist validation
Summary: CVE-2021-26539 sanitize-html: improper handling of internationalized domain n...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-26539
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1934622 1934324 1934325 1934613 1934614 1934615 1934616 1934618 1934619 1934620 1934621
Blocks: 1927304
TreeView+ depends on / blocked
 
Reported: 2021-02-24 13:40 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-08-31 09:09 UTC (History)
21 users (show)

Fixed In Version: sanitize-html 2.3.1
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Environment:
Last Closed: 2021-07-28 01:06:51 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:2438 0 None None None 2021-07-27 22:31:58 UTC
Red Hat Product Errata RHSA-2021:3759 0 None None None 2021-10-18 17:28:19 UTC

Description Guilherme de Almeida Suckevicz 2021-02-24 13:40:11 UTC 
Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the "allowedIframeHostnames" option.

Reference:
https://github.com/apostrophecms/sanitize-html/pull/458
Comment 4 errata-xmlrpc 2021-07-27 22:31:59 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.8

Via RHSA-2021:2438 https://access.redhat.com/errata/RHSA-2021:2438
Comment 5 Product Security DevOps Team 2021-07-28 01:06:51 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-26539
Comment 6 Product Security DevOps Team 2021-07-28 07:06:48 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-26539
Comment 7 errata-xmlrpc 2021-10-18 17:28:17 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.9

Via RHSA-2021:3759 https://access.redhat.com/errata/RHSA-2021:3759
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