Bug 2543797 (CVE-2026-103111) - CVE-2026-103111 pcre2: pcre2: Out-of-bounds write via crafted regular expression
Summary: CVE-2026-103111 pcre2: pcre2: Out-of-bounds write via crafted regular expression
Keywords:
Status: NEW
Alias: CVE-2026-103111
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2545131
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-30 04:41 UTC by OSIDB Bzimport
Modified: 2026-10-22 15:21 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-2026:81842 0 None None None 2026-10-13 04:29:21 UTC
Red Hat Product Errata RHBA-2026:82816 0 None None None 2026-10-14 08:57:50 UTC
Red Hat Product Errata RHBA-2026:82863 0 None None None 2026-10-14 10:57:58 UTC
Red Hat Product Errata RHBA-2026:82874 0 None None None 2026-10-14 11:08:07 UTC
Red Hat Product Errata RHBA-2026:82905 0 None None None 2026-10-14 13:54:46 UTC
Red Hat Product Errata RHBA-2026:82950 0 None None None 2026-10-14 14:28:43 UTC
Red Hat Product Errata RHBA-2026:83081 0 None None None 2026-10-14 16:32:59 UTC
Red Hat Product Errata RHBA-2026:83557 0 None None None 2026-10-15 11:59:28 UTC
Red Hat Product Errata RHBA-2026:83559 0 None None None 2026-10-15 11:49:24 UTC
Red Hat Product Errata RHBA-2026:84981 0 None None None 2026-10-19 12:29:22 UTC
Red Hat Product Errata RHBA-2026:85192 0 None None None 2026-10-19 14:11:20 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 16:56:38 UTC
Red Hat Product Errata RHSA-2026:81522 0 None None None 2026-10-12 21:30:36 UTC
Red Hat Product Errata RHSA-2026:81532 0 None None None 2026-10-12 22:26:54 UTC
Red Hat Product Errata RHSA-2026:81613 0 None None None 2026-10-12 23:13:40 UTC
Red Hat Product Errata RHSA-2026:82845 0 None None None 2026-10-14 09:33:05 UTC
Red Hat Product Errata RHSA-2026:82875 0 None None None 2026-10-14 15:05:29 UTC
Red Hat Product Errata RHSA-2026:82876 0 None None None 2026-10-14 13:54:57 UTC
Red Hat Product Errata RHSA-2026:84799 0 None None None 2026-10-19 11:14:53 UTC
Red Hat Product Errata RHSA-2026:86205 0 None None None 2026-10-20 21:50:30 UTC
Red Hat Product Errata RHSA-2026:86206 0 None None None 2026-10-20 21:53:40 UTC

Description OSIDB Bzimport 2026-09-30 04:41:20 UTC 
PCRE2 before 10.49, when there is an attacker-controlled regular expression and certain JIT API usage, allows an out-of-bounds write with arbitrary data.
Comment 1 Jon Orris 2026-10-12 21:30:34 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 22:26:52 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
Comment 4 Jon Orris 2026-10-14 09:33:03 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:82845 https://access.redhat.com/errata/RHSA-2026:82845
Comment 5 Jon Orris 2026-10-14 13:54:55 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:82876 https://access.redhat.com/errata/RHSA-2026:82876
Comment 6 Jon Orris 2026-10-14 15:05:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:82875 https://access.redhat.com/errata/RHSA-2026:82875
Comment 12 Jon Orris 2026-10-19 11:14:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:84799 https://access.redhat.com/errata/RHSA-2026:84799
Comment 13 Jon Orris 2026-10-20 21:50:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:86205 https://access.redhat.com/errata/RHSA-2026:86205
Comment 14 Jon Orris 2026-10-20 21:53:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:86206 https://access.redhat.com/errata/RHSA-2026:86206
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