Bug 2453117 (CVE-2026-4046) - CVE-2026-4046 glibc: glibc: Denial of Service via iconv() function with specific character sets
Summary: CVE-2026-4046 glibc: glibc: Denial of Service via iconv() function with speci...
Keywords:
Status: NEW
Alias: CVE-2026-4046
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2453211 2453212 2453213
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-30 18:01 UTC by OSIDB Bzimport
Modified: 2026-06-19 19:33 UTC (History)
9 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 RHBA-2026:21148 0 None None None 2026-05-26 20:30:50 UTC
Red Hat Product Errata RHBA-2026:21149 0 None None None 2026-05-26 20:29:53 UTC
Red Hat Product Errata RHBA-2026:21155 0 None None None 2026-05-26 21:43:00 UTC
Red Hat Product Errata RHBA-2026:21156 0 None None None 2026-05-26 21:54:51 UTC
Red Hat Product Errata RHBA-2026:21321 0 None None None 2026-05-27 13:03:27 UTC
Red Hat Product Errata RHBA-2026:21323 0 None None None 2026-05-27 13:05:04 UTC
Red Hat Product Errata RHBA-2026:21324 0 None None None 2026-05-27 15:20:19 UTC
Red Hat Product Errata RHBA-2026:21454 0 None None None 2026-05-27 21:21:10 UTC
Red Hat Product Errata RHBA-2026:21455 0 None None None 2026-05-27 21:11:45 UTC
Red Hat Product Errata RHBA-2026:21725 0 None None None 2026-05-28 11:10:38 UTC
Red Hat Product Errata RHBA-2026:21738 0 None None None 2026-05-28 11:14:11 UTC
Red Hat Product Errata RHBA-2026:22301 0 None None None 2026-06-01 08:20:09 UTC
Red Hat Product Errata RHBA-2026:22302 0 None None None 2026-06-01 08:24:46 UTC
Red Hat Product Errata RHBA-2026:22311 0 None None None 2026-06-01 11:58:12 UTC
Red Hat Product Errata RHBA-2026:22809 0 None None None 2026-06-03 12:59:55 UTC
Red Hat Product Errata RHBA-2026:22845 0 None None None 2026-06-03 13:11:03 UTC
Red Hat Product Errata RHBA-2026:23421 0 None None None 2026-06-04 20:27:53 UTC
Red Hat Product Errata RHSA-2026:20587 0 None None None 2026-05-26 08:33:52 UTC
Red Hat Product Errata RHSA-2026:20594 0 None None None 2026-05-26 09:00:49 UTC
Red Hat Product Errata RHSA-2026:20597 0 None None None 2026-05-26 08:53:45 UTC

Description OSIDB Bzimport 2026-03-30 18:01:43 UTC 
The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application.



This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Comment 2 errata-xmlrpc 2026-05-26 08:33:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:20587 https://access.redhat.com/errata/RHSA-2026:20587
Comment 3 errata-xmlrpc 2026-05-26 08:53:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:20597 https://access.redhat.com/errata/RHSA-2026:20597
Comment 4 errata-xmlrpc 2026-05-26 09:00:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:20594 https://access.redhat.com/errata/RHSA-2026:20594
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