NVD

CVE-2026-8357 Detail

Not Scheduled

This CVE record is not being prioritized for NVD enrichment efforts due to resource or other concerns.

Description

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

Nist CVSS score does not match with CNA score

CNA: Document Foundation, The

CVSS-BT 5.4 MEDIUM

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

ADP: redhat-SADP

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2026:35839	redhat-SADP
https://access.redhat.com/errata/RHSA-2026:36832	redhat-SADP
https://access.redhat.com/security/cve/CVE-2026-8357	redhat-SADP
https://bugzilla.redhat.com/show_bug.cgi?id=2488964	redhat-SADP
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8357.json	redhat-SADP
https://www.libreoffice.org/about-us/security/advisories/cve-2026-8357	Document Foundation, The

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-131	Incorrect Calculation of Buffer Size	redhat-SADP
CWE-193	Off-by-one Error	Document Foundation, The
CWE-787	Out-of-bounds Write	Document Foundation, The

Change History

6 change records found show changes

CVE Modified by redhat-SADP 7/09/2026 9:17:31 AM

Action

Type

Old Value

New Value

Added

Reference

https://access.redhat.com/errata/RHSA-2026:36832

Changed

Affected

[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CRB (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::crb"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]

[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CRB (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::crb"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9::crb"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]}]

CVE Modified by redhat-SADP 7/06/2026 9:17:09 AM

Action

Type

Old Value

New Value

Added

Reference

https://access.redhat.com/errata/RHSA-2026:35839

Changed

Affected

[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]

[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux CRB (v. 8)","defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8::crb"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]

CVE Modified by redhat-SADP 6/29/2026 11:21:42 PM

Action	Type	New Value
Added	CVSS V3.1	AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added	CWE	CWE-131
Added	Reference	https://access.redhat.com/security/cve/CVE-2026-8357
Added	Reference	https://bugzilla.redhat.com/show_bug.cgi?id=2488964
Added	Reference	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8357.json
Added	Affected	[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]}]

New CVE Received from Document Foundation, The 6/15/2026 2:16:37 PM

Action	Type	New Value
Added	Description	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.
Added	CVSS V4.0	AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Added	CWE	CWE-193
Added	CWE	CWE-787
Added	Reference	https://www.libreoffice.org/about-us/security/advisories/cve-2026-8357

Quick Info

CVE Dictionary Entry:
CVE-2026-8357
NVD Published Date:
06/15/2026
NVD Last Modified:
07/09/2026
Source:
Document Foundation, The

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2026-8357 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Change History

CVE Modified by redhat-SADP 7/09/2026 9:17:31 AM

CVE Modified by redhat-SADP 7/06/2026 9:17:09 AM

CVE Modified by redhat-SADP 6/29/2026 11:21:42 PM

CVE Modified by CISA-ADP 6/17/2026 7:03:50 AM

CVE Modified by Document Foundation, The 6/17/2026 7:03:50 AM

New CVE Received from Document Foundation, The 6/15/2026 2:16:37 PM

Quick Info