exceljs-hardened before 5.0.0 decompresses all entries from supplied xlsx archives into memory without limits on entry size, total size, or compression ratio. Attackers can upload highly compressed workbooks that expand to gigabytes in memory, exhausting available resources and causing denial of service.
Metrics
Affected Vendors & Products
References
History
Mon, 24 Aug 2026 00:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | exceljs-hardened before 5.0.0 decompresses all entries from supplied xlsx archives into memory without limits on entry size, total size, or compression ratio. Attackers can upload highly compressed workbooks that expand to gigabytes in memory, exhausting available resources and causing denial of service. | |
| Title | exceljs through 4.4.0 Uncontrolled Resource Consumption via Unbounded xlsx Decompression | |
| First Time appeared |
Exceljs Project
Exceljs Project exceljs |
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| Weaknesses | CWE-409 | |
| CPEs | cpe:2.3:a:exceljs_project:exceljs:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Exceljs Project
Exceljs Project exceljs |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-24T00:30:46.462Z
Reserved: 2026-08-24T00:15:01.655Z
Link: CVE-2026-78206
No data.
Status : Received
Published: 2026-08-24T01:16:57.973
Modified: 2026-08-24T01:16:57.973
Link: CVE-2026-78206
No data.
OpenCVE Enrichment
Updated: 2026-08-24T03:30:04Z