Description
xlsxio through 0.2.37 contains a NULL pointer dereference vulnerability in main_sheet_get_sheetfile_expat_callback_element_start() in lib/xlsxio_read.c that allows attackers to crash applications via crafted files. Attackers can supply a .xlsx file whose workbook.xml.rels contains a worksheet Relationship lacking an Id attribute, crashing the process when xlsxioread_sheet_open() is called.
Published: 2026-10-14
Score: 6.8 Medium
EPSS: n/a
KEV: No
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Remediation

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Tracking

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History

Wed, 14 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Description xlsxio through 0.2.37 contains a NULL pointer dereference vulnerability in main_sheet_get_sheetfile_expat_callback_element_start() in lib/xlsxio_read.c that allows attackers to crash applications via crafted files. Attackers can supply a .xlsx file whose workbook.xml.rels contains a worksheet Relationship lacking an Id attribute, crashing the process when xlsxioread_sheet_open() is called.
Title xlsxio through 0.2.37 NULL Pointer Dereference via Worksheet Relationship Without Id
First Time appeared Xlsxio Project
Xlsxio Project xlsxio
Weaknesses CWE-476
CPEs cpe:2.3:a:xlsxio_project:xlsxio:*:*:*:*:*:*:*:*
Vendors & Products Xlsxio Project
Xlsxio Project xlsxio
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Xlsxio Project Xlsxio
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-14T14:16:42.374Z

Reserved: 2026-10-14T13:07:20.207Z

Link: CVE-2026-110600

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses