Bug 2531746 (CVE-2026-89158) - CVE-2026-89158 PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-bit platforms
Summary: CVE-2026-89158 PCRE2: PCRE2: Out-of-bounds write via integer overflow on 32-b...
Keywords:
Status: NEW
Alias: CVE-2026-89158
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: 2531872 2531874 2531870 2531873 2531875
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-11 04:21 UTC by OSIDB Bzimport
Modified: 2026-10-20 16:56 UTC (History)
21 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-2026:81842 0 None None None 2026-10-13 04:29:19 UTC
Red Hat Product Errata RHBA-2026:82816 0 None None None 2026-10-14 08:57:49 UTC
Red Hat Product Errata RHBA-2026:82863 0 None None None 2026-10-14 10:57:59 UTC
Red Hat Product Errata RHBA-2026:82874 0 None None None 2026-10-14 11:08:10 UTC
Red Hat Product Errata RHBA-2026:82905 0 None None None 2026-10-14 13:54:48 UTC
Red Hat Product Errata RHBA-2026:82950 0 None None None 2026-10-14 14:28:40 UTC
Red Hat Product Errata RHBA-2026:83081 0 None None None 2026-10-14 16:33:08 UTC
Red Hat Product Errata RHBA-2026:83557 0 None None None 2026-10-15 11:59:27 UTC
Red Hat Product Errata RHBA-2026:83559 0 None None None 2026-10-15 11:49:25 UTC
Red Hat Product Errata RHBA-2026:84981 0 None None None 2026-10-19 12:29:24 UTC
Red Hat Product Errata RHBA-2026:85192 0 None None None 2026-10-19 14:11:17 UTC
Red Hat Product Errata RHBA-2026:85196 0 None None None 2026-10-19 14:03:14 UTC
Red Hat Product Errata RHBA-2026:86043 0 None None None 2026-10-20 16:56:35 UTC
Red Hat Product Errata RHSA-2026:81522 0 None None None 2026-10-12 21:30:31 UTC
Red Hat Product Errata RHSA-2026:81532 0 None None None 2026-10-12 22:26:53 UTC
Red Hat Product Errata RHSA-2026:81613 0 None None None 2026-10-12 23:13:40 UTC

Description OSIDB Bzimport 2026-09-11 04:21:27 UTC 
PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant out-of-bounds write.
Comment 1 Jon Orris 2026-10-12 21:30:29 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:81522 https://access.redhat.com/errata/RHSA-2026:81522
Comment 2 Jon Orris 2026-10-12 22:26:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:81532 https://access.redhat.com/errata/RHSA-2026:81532
Comment 3 Jon Orris 2026-10-12 23:13:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:81613 https://access.redhat.com/errata/RHSA-2026:81613
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