CVE-2026-107219 (GCVE-0-2026-107219)

Vulnerability from cvelistv5 – Published: 2026-10-07 18:33 – Updated: 2026-10-07 19:45
VLAI
Title
Excelize: Unbounded spinCount in agile decryption burns CPU during OpenFile
Summary
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.3.1 to 2.11.0, agile decryption accepts an attacker-controlled spinCount and performs that many password-key derivation iterations before verifier validation. OpenFile reaches agileDecrypt, which passes the unbounded spinCount to convertPasswdToKey before password verification. When a crafted OLE encrypted-workbook header supplies an excessive spinCount and the file is opened, the key-derivation loop performs unbounded attacker-selected work and cannot be cancelled, allowing an attacker to consume a CPU core for an attacker-controlled duration. No fixed version is available as of this review.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 19:44 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7553 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
qax-os excelize Affected: >= 2.3.1, <= 2.11.0
guessed Create a notification for this product.
Show details on NVD website
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