CVE-2026-107211 Excelize: Unchecked pivot-cache field index in extractPivotTableFields causes unrecoverable panic
A crafted Excel file triggers an unchecked index panic in Excelize, crashing the application processing the spreadsheet.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-107211?
CVE-2026-107211 is a high-severity denial of service vulnerability in qax-os excelize, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.8.1 to 2.11.0, separately parsed pivot-table field indices are used to index the pivot-cache field-name slice without bounds checks. extractPivotTableFields uses getPivotCacheFieldsName output while processing GetPivotTables and trusts the dataField fld attribute as an index. When a crafted workbook supplies a pivot-field count mismatch or an out-of-range dataField fld value before GetPivotTables is called, the unchecked index causes a Go slice-bounds panic that escapes the library, allowing an attacker to crash the process or request worker. No fixed version is available as of this review.
Weakness: CWE-129
Which versions are affected by CVE-2026-107211?
3 open source packages ship an affected version, including github.com/xuri/excelize/v2. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/xuri/excelize/v2 Go | From 2.8.1 | 2.11.1-0.20261003002531-6258dcebc4e2 |
github.com/xuri/excelize/v2 Go | From 2.8.1 | 2.11.1-0.20261003002531-6258dcebc4e2 |
github.com/xuri/excelize/v2 Go | From 2.8.1 | 2.11.1-0.20261003002531-6258dcebc4e2 |
Products include Excelize Excelize.
How do I fix CVE-2026-107211?
Upgrade github.com/xuri/excelize/v2 to 2.11.1-0.20261003002531-6258dcebc4e2 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-107211 being exploited?
There is no known exploitation of CVE-2026-107211 in the wild and no public exploit code.
Other vulnerabilities in qax-os excelize
- CVE-2026-107213 Excelize: Nil-pointer dereference in GetSlicers when a worksheet has extLst present but no drawing element
- CVE-2026-59161 Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation
- CVE-2026-107212 Excelize: Unbounded row number in Rows.Columns makes GetRows and the Rows iterator loop for days
- CVE-2026-107214 Excelize Decrypt: unrecoverable panics on malformed OLE/CFB encrypted workbooks
- CVE-2026-107215 Excelize: extractPart allocates attacker-controlled, unbounded and negative-sized buffers from CFB directory entries: remote panic / OOM DoS
Sources
Also known as GHSA-mx22-3794-2vpv, GO-2026-6695.