high7.5
CVE-2026-73232
ffuf denial of service (OOM) via HTTP response decompression bomb
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/ffuf/ffuf/v2 | <= 2.1.0 | 2.2.0 |
| go | github.com/ffuf/ffuf | <= 1.5.0 | none recorded |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-jcvh-xf52-2cwm
- https://github.com/ffuf/ffuf/security/advisories/GHSA-jcvh-xf52-2cwm
- https://nvd.nist.gov/vuln/detail/CVE-2026-73232
- https://github.com/ffuf/ffuf/pull/897
- https://github.com/ffuf/ffuf/commit/fb0da86c60443b0dddbc9a86e91e3a6487dff79b
- https://github.com/ffuf/ffuf/releases/tag/v2.2.0