Security Advisories
CVEs affecting projects tracked on Release Alert, from NVD & OSV.
CVE-2026-59933
Not yet scoredAwaiting CVSS assessment
Published
July 23, 2026
Affected
1 project
Assigned by
OSV
Description
PHPSpreadsheet: XLS/OLE sector-chain self-loop causes memory exhaustion
PHPOffice/PhpSpreadsheet
GitHubA pure PHP library for reading and writing spreadsheet files
GitHubA pure PHP library for reading and writing spreadsheet files>= 4.0.0, < 5.8.1, >= 3.3.0, < 3.10.7, >= 2.2.0, < 2.4.7, >= 2.0.0, < 2.1.18, < 1.30.6NVD