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PhpSpreadsheet has CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions

🗓️ 29 Apr 2026 20:24:13Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 9 Views

The PHPSpreadsheet Excel reader allows CPU denial of service from unbounded row numbers in row attributes.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-40902
12 May 202622:02
attackerkb
Circl
CVE-2026-40902
28 Apr 202623:49
circl
CNNVD
PhpSpreadsheet 安全漏洞
12 May 202600:00
cnnvd
CVE
CVE-2026-40902
12 May 202622:02
cve
Cvelist
CVE-2026-40902 PhpSpreadsheet: CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions
12 May 202622:02
cvelist
NVD
CVE-2026-40902
12 May 202622:16
nvd
OSV
GHSA-7C6M-4442-2X6M PhpSpreadsheet has CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions
29 Apr 202620:24
osv
Positive Technologies
PT-2026-37107
29 Apr 202600:00
ptsecurity
RedhatCVE
CVE-2026-40902
5 Jun 202619:13
redhatcve
Snyk
Cross-site Scripting (XSS)
29 Apr 202620:24
snyk
Rows per page
Vulners
Node
phpofficephpspreadsheetRange1.30.3composer
OR
phpofficephpspreadsheetRange2.0.02.1.15composer
OR
phpofficephpspreadsheetRange2.2.02.4.4composer
OR
phpofficephpspreadsheetRange3.3.03.10.4composer
OR
phpofficephpspreadsheetRange4.0.05.6.0composer

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13 May 2026 16:31Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.17.5
EPSS0.00395
SSVC
9