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Tracking
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| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-7c6m-4442-2x6m | PhpSpreadsheet has CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions |
Thu, 14 May 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:* |
Wed, 13 May 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 13 May 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Phpoffice
Phpoffice phpspreadsheet |
|
| Vendors & Products |
Phpoffice
Phpoffice phpspreadsheet |
Tue, 12 May 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0, the XLSX reader's ColumnAndRowAttributes::readRowAttributes() method reads row numbers from XML attributes without validating them against the spreadsheet maximum row limit (AddressRange::MAX_ROW = 1,048,576). An attacker can craft a minimal XLSX file (~1.6KB) containing a <row r="999999999"/> element that inflates cachedHighestRow to 999,999,999, causing any subsequent row iteration to attempt ~1 billion loop cycles and exhaust CPU resources. This vulnerability is fixed in 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0. | |
| Title | PhpSpreadsheet: CPU Denial of Service via Unbounded Row Number in XLSX Row Dimensions | |
| Weaknesses | CWE-770 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-13T12:11:34.633Z
Reserved: 2026-04-15T16:37:22.767Z
Link: CVE-2026-40902
Updated: 2026-05-13T12:10:47.841Z
Status : Analyzed
Published: 2026-05-12T22:16:33.923
Modified: 2026-05-14T14:50:17.350
Link: CVE-2026-40902
No data.
OpenCVE Enrichment
Updated: 2026-05-12T23:45:25Z
Github GHSA