CVE-2026-73232
Received
Received - Intake
ffuf Denial of Service via Unbounded Response Size
Vulnerability report for CVE-2026-73232, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-08-11
Last updated on: 2026-08-11
Assigner: GitHub, Inc.
Description
Description
ffuf is a fast web fuzzer written in Go. Prior to 2.2.0, ffuf allows a malicious target server to cause an out-of-memory denial of service because the response size guard in pkg/runner/simple.go checks only the compressed Content-Length while io.ReadAll reads gzip, brotli, deflate, transparently decompressed, or chunked response bodies without a decompressed-size bound. This issue is fixed in version 2.2.0.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ffuf | ffuf | 2.2.0 |
| ffuf | ffuf | to 2.2.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-409 | The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. |
