Bug 2488964 (CVE-2026-8357) - CVE-2026-8357 libreoffice: LibreOffice Calc: Arbitrary code execution via heap buffer overflow in formula compilation
Summary: CVE-2026-8357 libreoffice: LibreOffice Calc: Arbitrary code execution via hea...
Keywords:
Status: NEW
Alias: CVE-2026-8357
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: 2490276
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-15 18:01 UTC by OSIDB Bzimport
Modified: 2026-07-27 03:31 UTC (History)
2 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-2026:35839 0 None None None 2026-07-06 05:14:37 UTC
Red Hat Product Errata RHSA-2026:36832 0 None None None 2026-07-08 18:59:36 UTC
Red Hat Product Errata RHSA-2026:43423 0 None None None 2026-07-22 10:53:25 UTC
Red Hat Product Errata RHSA-2026:43424 0 None None None 2026-07-22 11:09:37 UTC
Red Hat Product Errata RHSA-2026:43425 0 None None None 2026-07-22 11:15:16 UTC
Red Hat Product Errata RHSA-2026:43460 0 None None None 2026-07-22 11:18:07 UTC
Red Hat Product Errata RHSA-2026:43461 0 None None None 2026-07-22 11:12:25 UTC
Red Hat Product Errata RHSA-2026:46386 0 None None None 2026-07-27 03:19:02 UTC
Red Hat Product Errata RHSA-2026:46387 0 None None None 2026-07-27 03:31:22 UTC

Description OSIDB Bzimport 2026-06-15 18:01:46 UTC 
LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.
Comment 3 errata-xmlrpc 2026-07-06 05:14:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:35839 https://access.redhat.com/errata/RHSA-2026:35839
Comment 4 errata-xmlrpc 2026-07-08 18:59:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:36832 https://access.redhat.com/errata/RHSA-2026:36832
Comment 5 errata-xmlrpc 2026-07-22 10:53:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:43423 https://access.redhat.com/errata/RHSA-2026:43423
Comment 6 errata-xmlrpc 2026-07-22 11:09:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:43424 https://access.redhat.com/errata/RHSA-2026:43424
Comment 7 errata-xmlrpc 2026-07-22 11:12:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:43461 https://access.redhat.com/errata/RHSA-2026:43461
Comment 8 errata-xmlrpc 2026-07-22 11:15:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:43425 https://access.redhat.com/errata/RHSA-2026:43425
Comment 9 errata-xmlrpc 2026-07-22 11:18:07 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-2026:43460 https://access.redhat.com/errata/RHSA-2026:43460
Comment 10 errata-xmlrpc 2026-07-27 03:19:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:46386 https://access.redhat.com/errata/RHSA-2026:46386
Comment 11 errata-xmlrpc 2026-07-27 03:31:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:46387 https://access.redhat.com/errata/RHSA-2026:46387
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