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2 vulnerabilities found for xlsxio by brechtsanders
CVE-2026-110600 (GCVE-0-2026-110600)
Vulnerability from nvd – Published: 2026-10-14 14:16 – Updated: 2026-10-14 20:43
VLAI
EPSS
VEX
Title
xlsxio through 0.2.37 NULL Pointer Dereference via Worksheet Relationship Without Id
Summary
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.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:43 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/brechtsanders/xlsxio/issues/151 | issue-tracking |
| https://github.com/brechtsanders/xlsxio/blob/0.2.… | technical-description |
| https://hackmd.io/@haind-pwn/xlsxio-relationship-… | third-party-advisory |
| https://www.vulncheck.com/advisories/xlsxio-throu… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| brechtsanders | xlsxio |
Affected:
0 , ≤ 0.2.37
(semver)
cpe:2.3:a:xlsxio_project:xlsxio:*:*:*:*:*:*:*:* |
Date Public
2026-09-20 00:00
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CVE-2026-110600 (GCVE-0-2026-110600)
Vulnerability from cvelistv5 – Published: 2026-10-14 14:16 – Updated: 2026-10-14 20:43
VLAI
EPSS
VEX
Title
xlsxio through 0.2.37 NULL Pointer Dereference via Worksheet Relationship Without Id
Summary
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.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 20:43 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/brechtsanders/xlsxio/issues/151 | issue-tracking |
| https://github.com/brechtsanders/xlsxio/blob/0.2.… | technical-description |
| https://hackmd.io/@haind-pwn/xlsxio-relationship-… | third-party-advisory |
| https://www.vulncheck.com/advisories/xlsxio-throu… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| brechtsanders | xlsxio |
Affected:
0 , ≤ 0.2.37
(semver)
cpe:2.3:a:xlsxio_project:xlsxio:*:*:*:*:*:*:*:* |
Date Public
2026-09-20 00:00
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