CVE-2026-73232 ffuf denial of service (OOM) via HTTP response decompression bomb
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-73232?
CVE-2026-73232 is a high-severity vulnerability in ffuf, published on 11 Aug 2026.
Official 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.
Weakness: CWE-409
Which versions are affected by CVE-2026-73232?
6 open source packages ship an affected version, including github.com/ffuf/ffuf and github.com/ffuf/ffuf/v2.
| Package | Affected | Fixed in |
|---|---|---|
github.com/ffuf/ffuf Go | All versions | None |
github.com/ffuf/ffuf Go | All versions to 1.5.0 | None |
github.com/ffuf/ffuf Go | All versions to 1.5.0 | None |
github.com/ffuf/ffuf/v2 Go | All versions | 2.2.0 |
github.com/ffuf/ffuf/v2 Go | All versions | 2.2.0 |
github.com/ffuf/ffuf/v2 Go | All versions | 2.2.0 |
How do I fix CVE-2026-73232?
Upgrade to a fixed version.
Is CVE-2026-73232 being exploited?
There is no known exploitation of CVE-2026-73232 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-73232, GHSA-jcvh-xf52-2cwm, GO-2026-6369, UBUNTU-CVE-2026-73232.