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CVE-2026-107211

HIGH 8.7

Published 2026-10-07 · Last modified 2026-10-07

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.

ELEVATED IMPACT

Severe if exploited (CVSS 8.7), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 14th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

8.7CVSS 4.0 · HIGH

  • ConfidentialityNone
  • IntegrityNone
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable
  • ✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Qax Os Excelize

Products Excelize

Weakness (CWE)

  • CWE-129: : Improper Validation of Array Index

CVSS vector

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

References and research data (JSON)

Packages and version ranges

Each advisory describes its own package and affected ranges. A boundary applies to that range; it is not a universal upgrade recommendation.

  • github.com/xuri/excelize/v2 Go

    pkg:golang/github.com/xuri/excelize/v2

    SEMVER range
    • Introduced version (included): 2.8.1
    • Fixed boundary (excluded): 2.11.1-0.20261003002531-6258dcebc4e2
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-mx22-3794-2vpv/GHSA-mx22-3794-2vpv.json"
  }
}
    GitHub Advisory Database · GHSA-mx22-3794-2vpv · Updated 2026-10-19T21:41:17.333023394Z
  • github.com/xuri/excelize/v2 Go

    pkg:golang/github.com/xuri/excelize/v2

    SEMVER range
    • Introduced version (included): 2.8.1
    • Fixed boundary (excluded): 2.11.1-0.20261003002531-6258dcebc4e2
    Additional upstream package constraints
    {
  "ecosystem": {
    "imports": [
      {
        "path": "github.com/xuri/excelize/v2",
        "symbols": [
          "File.AddSlicer",
          "File.DeletePivotTable",
          "File.DeleteSlicer",
          "File.GetPivotTables",
          "File.GetSlicers",
          "File.extractPivotTableFields"
        ]
      }
    ]
  },
  "database": {
    "source": "https://vuln.go.dev/ID/GO-2026-6695.json"
  }
}
    Go Vulnerability Database · GO-2026-6695 · Updated 2026-10-19T21:31:39.256956036Z

Known Affected Software Configurations

VendorProductVersion range
ExcelizeExcelize≥ 2.8.1 and ≤ 2.11.0

All CVSS metrics

  • HIGH 8.7 v4.0 · CNA Primary
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • HIGH 8.7 v4.0 · NVD Secondary
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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
  • MEDIUM 5.5 v3.1 · NVD Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Exploit-tagged references (not proof of a PoC)

Patches & mitigations

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS