CVE-2026-107219

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/qax-os/excelize/commit/2badfcd5841d0d88b0ffea119f5a2f3c53b4910b	Patch
https://github.com/qax-os/excelize/pull/2389	Issue Tracking Patch
https://github.com/qax-os/excelize/security/advisories/GHSA-jrfj-fhj2-jjvm	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*

History

13 Oct 2026, 14:23

Type	Values Removed	Values Added
First Time		Excelize excelize Excelize
CPE		cpe:2.3:a:excelize:excelize::::::go::*
References	~~() https://github.com/qax-os/excelize/commit/2badfcd5841d0d88b0ffea119f5a2f3c53b4910b -~~	() https://github.com/qax-os/excelize/commit/2badfcd5841d0d88b0ffea119f5a2f3c53b4910b - Patch
References	~~() https://github.com/qax-os/excelize/pull/2389 -~~	() https://github.com/qax-os/excelize/pull/2389 - Issue Tracking, Patch
References	~~() https://github.com/qax-os/excelize/security/advisories/GHSA-jrfj-fhj2-jjvm -~~	() https://github.com/qax-os/excelize/security/advisories/GHSA-jrfj-fhj2-jjvm - Exploit, Vendor Advisory

07 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 19:17

Updated : 2026-10-13 14:23

NVD link : CVE-2026-107219

Mitre link : CVE-2026-107219

CVE.ORG link : CVE-2026-107219

JSON object : View

Products Affected

excelize

excelize

CWE

CWE-400

Uncontrolled Resource Consumption

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