CVE-2026-59162CWE-248CWE-755

Excelize: Negative shared-string index causes panic in GetCellValue and GetRows

Medium · published July 10, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
50.8
In the wild
Unconfirmed
What it is

Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, Excelize parses shared-string cell values with strconv.Atoi and checks only the upper bound before indexing the shared string slice, allowing an XLSX file containing a shared-string cell with -1 to trigger sharedStrings[-1] and panic when read through GetCellValue or GetRows. This issue is fixed in version 2.11.0.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00655 · 50.8th percentile
Weaknesses
CWE-248 · Uncaught Exception; CWE-755 · Improper Handling of Exceptional Conditions
Published
2026-07-10T15:51Z
EPSS history
Timeline
  • 10 JUL 15:51Z
    Excelize: Negative shared-string index causes panic in GetCellValue and GetRows
    cvelistv5