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TI-2026-69261 Aliases CVE-2026-107213GHSA-r7x5-4969-99p7

Nil-pointer dereference in Excelize GetSlicers can crash processes

Priority MEDIUM 43CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-476.

Summary

Excelize, a Go library for reading and writing Microsoft Excel spreadsheets, from 2.9.0 through 2.11.0 has a NULL pointer dereference (CWE-476) in GetSlicers. The function reads a drawing pointer that a worksheet may lack when it contains an extLst element, so a crafted file makes the application panic. An unauthenticated remote attacker can crash an unprotected process that calls GetSlicers on such a file. The references link to an exploit.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.9.0 to 2.11.0, GetSlicers checks for ExtLst but dereferences ws.Drawing without checking whether the independently optional drawing element exists. File.GetSlicers reads ws.Drawing.RID after seeing a worksheet extLst element even when the independently optional worksheet drawing element is absent. When a crafted worksheet contains an extLst element without a drawing element and the application calls GetSlicers, the nil ws.Drawing pointer is dereferenced while resolving the drawing relationship, allowing an attacker to panic and terminate an unprotected process. No fixed version is available as of this review.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/xuri/excelize/v2 (Go): 2.11.1-0.20260929015830-8ffeb07ec9a3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
qax-osexcelize2.9.0 – 2.11.0—No fix listedCNA
—github.com/xuri/excelize/v2 (Go)2.9.0 to before 2.11.1-0.20260929015830-8ffeb07ec9a32.11.1-0.20260929015830-8ffeb07ec9a3Patch availableGHSA-r7x5-4969-99p7
  • excelize Vendorqax-os Affected 2.9.0 – 2.11.0 Fixed in — No fix listed CNA
  • github.com/xuri/excelize/v2 (Go) Vendor— Affected 2.9.0 to before 2.11.1-0.20260929015830-8ffeb07ec9a3 Fixed in 2.11.1-0.20260929015830-8ffeb07ec9a3 Patch available GHSA-r7x5-4969-99p7

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*2.9.0 – 2.11.0Vulnerableqax-os
  • cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:* Versions 2.9.0 – 2.11.0 Vulnerable ·qax-os

Remediation

The Go module github.com/xuri/excelize/v2 is fixed in version 2.11.1-0.20260929015830-8ffeb07ec9a3. No fixed version of excelize is listed in the sources.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · GHSA-r7x5-4969-99p7 github.com/xuri/excelize/v2 (Go) Fixed in 2.11.1-0.20260929015830-8ffeb07ec9a3 Advisory →

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-107213
  2. 2026-10-07 CISA SSVC decision points changed
  3. 2026-10-08 Alias added: GHSA-r7x5-4969-99p7
  4. 2026-10-08 Fix available: Go/github.com/xuri/excelize/[email protected] · GHSA-r7x5-4969-99p7
  5. 2026-10-08 CVSS score added · GHSA-r7x5-4969-99p7
  6. 2026-10-08 Weakness changed · GHSA-r7x5-4969-99p7
  7. 2026-10-08 5 new references · GHSA-r7x5-4969-99p7
  8. 2026-10-13 CVSS score added · NVD

References

Exploit 1

Patch 2

Advisory 1

Other 1

  • TI-2026-42325 Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation CVSS 4.0HIGH 8.7
  • TI-2026-69266 Integer overflow in Excelize column parsing causes process panic CVSS 3.1HIGH 7.5
  • TI-2026-69263 Excelize crafted OLE files cause memory exhaustion and panic CVSS 3.1HIGH 7.5
  • TI-2026-69262 Unrecoverable panics in Excelize Decrypt on malformed OLE workbooks CVSS 3.1HIGH 7.5
  • TI-2026-69260 Unbounded row number in Excelize lets crafted spreadsheets hang reads CVSS 3.1HIGH 7.5
  • TI-2026-38996 Excelize: Unbounded Row Index Allocation in Worksheet Parser (checkSheet OOM/Panic DoS) CVSS 3.1HIGH 7.5
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences