CVE-2026-107223

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Source
https://cve.org/CVERecord?id=CVE-2026-107223
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107223.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-107223
Aliases
Published
2026-10-07T18:48:54Z
Modified
2026-10-08T10:45:26Z
Severity
  • 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Excelize: Unbounded <col max> attribute is loaded with no MaxColumns check and expanded per-column by flatCols(), so any column mutator hangs or OOMs the process
Details

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, flatCols expands file-loaded column ranges without validating Min and Max against the worksheet column limit. SetColWidth reaches flatCols, which expands xlsxCol.Min through xlsxCol.Max without enforcing MaxColumns. When a crafted worksheet supplies an oversized col max attribute and the application invokes a column mutator, flatCols performs a deep copy and append for every attacker-selected column number, allowing an attacker to consume excessive CPU and memory or trigger OOM. No fixed version is available as of this review.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-789"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107223.json"
}
References

Affected packages

Git / github.com/qax-os/excelize

Affected ranges

Type
GIT
Repo
https://github.com/qax-os/excelize
Events
Introduced
e51aff2d9562bbfb290ef76a948facb6d4660eff
Last Affected
90ff348959dd842cbf3a4fbd93a78afbe18db476
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "2.1.0"
        },
        {
            "last_affected": "2.11.0"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v2.*
v2.1.0
v2.10.0
v2.10.1
v2.11.0
v2.2.0
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.5.0
v2.6.0
v2.6.1
v2.7.0
v2.7.1
v2.8.0
v2.8.1
v2.9.0
v2.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107223.json"