Bug 2499658 (CVE-2026-40467) - CVE-2026-40467 gawk: gawk: Denial of Service due to Use After Free vulnerability in io.c
Summary: CVE-2026-40467 gawk: gawk: Denial of Service due to Use After Free vulnerabil...
Keywords:
Status: NEW
Alias: CVE-2026-40467
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2509821
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-13 13:02 UTC by OSIDB Bzimport
Modified: 2026-09-30 05:05 UTC (History)
17 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-2026:73751 0 None None None 2026-09-30 05:05:37 UTC
Red Hat Product Errata RHSA-2026:73429 0 None None None 2026-09-29 16:39:45 UTC
Red Hat Product Errata RHSA-2026:73511 0 None None None 2026-09-29 17:31:06 UTC
Red Hat Product Errata RHSA-2026:73512 0 None None None 2026-09-29 18:11:22 UTC

Description OSIDB Bzimport 2026-07-13 13:02:03 UTC 
Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.
Comment 3 Jon Orris 2026-09-29 16:39:44 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:73429 https://access.redhat.com/errata/RHSA-2026:73429
Comment 4 Jon Orris 2026-09-29 17:31:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:73511 https://access.redhat.com/errata/RHSA-2026:73511
Comment 5 Jon Orris 2026-09-29 18:11:20 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:73512 https://access.redhat.com/errata/RHSA-2026:73512
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