CVE-2026-107219: excelize Uncontrolled Resource Consumption
Vulnerability summary
CVE-2026-107219 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in excelize. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 25.7% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 07-10-2026PublishedVulnerability first disclosed.
- 07-10-2026Last modifiedVulnerability information updated.
Description
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 metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
26%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExcelize
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Excelize1 product
- excelize≥ 2.3.1, ≤ 2.11.0
Github.com/xuri/excelize1 product
- v2≥ 2.3.1, < 2.11.1-0.20260906004932-2badfcd5841d
Qax-os1 product
- excelize≥ 2.3.1, ≤ 2.11.0
3 vendors · 3 products
References
4 links- github.com/qax-os/excelize/security/advisories/GHSA-jrfj-fhj2-jjvmX Refsource CONFIRMWEBExploitVendor Advisory
- github.com/qax-os/excelizePACKAGE