Bug 2493326 (CVE-2026-48930) - CVE-2026-48930 nodejs: Node.js: Silent authority rebinding due to embedded-nul hostnames in TLS handling
Summary: CVE-2026-48930 nodejs: Node.js: Silent authority rebinding due to embedded-nu...
Keywords:
Status: NEW
Alias: CVE-2026-48930
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: 2493834 2493835 2493836
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-26 02:01 UTC by OSIDB Bzimport
Modified: 2026-07-20 13:07 UTC (History)
3 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-2026:35841 0 None None None 2026-07-06 04:37:02 UTC
Red Hat Product Errata RHSA-2026:35842 0 None None None 2026-07-06 05:16:38 UTC
Red Hat Product Errata RHSA-2026:35891 0 None None None 2026-07-06 14:23:48 UTC
Red Hat Product Errata RHSA-2026:35892 0 None None None 2026-07-06 14:45:10 UTC
Red Hat Product Errata RHSA-2026:39868 0 None None None 2026-07-15 11:23:29 UTC
Red Hat Product Errata RHSA-2026:41947 0 None None None 2026-07-20 13:07:05 UTC

Description OSIDB Bzimport 2026-06-26 02:01:35 UTC 
A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings.

This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Comment 2 errata-xmlrpc 2026-07-06 04:37:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:35841 https://access.redhat.com/errata/RHSA-2026:35841
Comment 3 errata-xmlrpc 2026-07-06 05:16:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:35842 https://access.redhat.com/errata/RHSA-2026:35842
Comment 4 errata-xmlrpc 2026-07-06 14:23:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:35891 https://access.redhat.com/errata/RHSA-2026:35891
Comment 5 errata-xmlrpc 2026-07-06 14:45:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:35892 https://access.redhat.com/errata/RHSA-2026:35892
Comment 6 errata-xmlrpc 2026-07-15 11:23:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:39868 https://access.redhat.com/errata/RHSA-2026:39868
Comment 7 errata-xmlrpc 2026-07-20 13:07:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:41947 https://access.redhat.com/errata/RHSA-2026:41947
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