CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2026-73232
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-31)
- CWE
- CWE-409
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-jcvh-xf52-2cwm | Go | github.com/ffuf/ffuf/v2 | <2.2.0 | 2.2.0 |
| GHSA-jcvh-xf52-2cwm | Go | github.com/ffuf/ffuf | <=1.5.0 | no fix published |
| GO-2026-6369 | Go | github.com/ffuf/ffuf | all versions | no fix published |
| GO-2026-6369 | Go | github.com/ffuf/ffuf/v2 | <2.2.0 | 2.2.0 |