Bug 2499655 (CVE-2026-40468) - CVE-2026-40468 gawk: gawk: Memory corruption via integer overflow
Summary: CVE-2026-40468 gawk: gawk: Memory corruption via integer overflow
Keywords:
Status: NEW
Alias: CVE-2026-40468
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: 2510292
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-13 13:01 UTC by OSIDB Bzimport
Modified: 2026-10-12 11:53 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 RHBA-2026:75626 0 None None None 2026-10-05 02:41:41 UTC
Red Hat Product Errata RHBA-2026:76731 0 None None None 2026-10-06 10:34:59 UTC
Red Hat Product Errata RHBA-2026:76749 0 None None None 2026-10-06 12:22:39 UTC
Red Hat Product Errata RHBA-2026:76934 0 None None None 2026-10-06 16:27:11 UTC
Red Hat Product Errata RHBA-2026:76987 0 None None None 2026-10-06 18:29:01 UTC
Red Hat Product Errata RHBA-2026:79148 0 None None None 2026-10-08 12:26:44 UTC
Red Hat Product Errata RHBA-2026:79149 0 None None None 2026-10-08 12:19:56 UTC
Red Hat Product Errata RHBA-2026:79714 0 None None None 2026-10-08 23:26:11 UTC
Red Hat Product Errata RHBA-2026:79718 0 None None None 2026-10-08 23:38:29 UTC
Red Hat Product Errata RHBA-2026:80784 0 None None None 2026-10-12 11:33:30 UTC
Red Hat Product Errata RHBA-2026:80785 0 None None None 2026-10-12 11:53:26 UTC
Red Hat Product Errata RHSA-2026:73429 0 None None None 2026-09-29 16:39:43 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 18:11:19 UTC

Description OSIDB Bzimport 2026-07-13 13:01:28 UTC 
Integer overflow vulnerability has been found in "builtin.c" program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.
Comment 3 Jon Orris 2026-09-29 16:39:41 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 17:31:04 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 18:11:18 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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