Vulnerability · Published Aug 11, 2026 · Assigned by GitHub_M
CVE-2026-73232ffuf denial of service (OOM) via HTTP response decompression bomb
High 7.5
In plain English
A high-severity security flaw in ffuf from ffuf. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ffuf | no fix listed | DEBIAN-CVE-2026-73232 |
| Debian:13 | ffuf | no fix listed | DEBIAN-CVE-2026-73232 |
| Debian:14 | ffuf | 2.2.1-1 | DEBIAN-CVE-2026-73232 |
| Go | github.com/ffuf/ffuf | no fix listed | GO-2026-6369 |
| Go | github.com/ffuf/ffuf | no fix listed | GHSA-jcvh-xf52-2cwm |
| Go | github.com/ffuf/ffuf/v2 | 2.2.0 | GO-2026-6369 |
| Go | github.com/ffuf/ffuf/v2 | 2.2.0 | GHSA-jcvh-xf52-2cwm |
| Ubuntu:22.04:LTS | ffuf | no fix listed | UBUNTU-CVE-2026-73232 |
| Ubuntu:26.04:LTS | ffuf | no fix listed | UBUNTU-CVE-2026-73232 |
| Ubuntu:26.10 | ffuf | no fix listed | UBUNTU-CVE-2026-73232 |
Affected products (as reported)
Weakness: CWE-409 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/ffuf/ffuf/security/advisories/GHSA-jcvh-xf52-2cwm x_refsource_CONFIRM
- https://github.com/ffuf/ffuf/pull/897 x_refsource_MISC
- https://github.com/ffuf/ffuf/commit/fb0da86c60443b0dddbc9a86e91e3a6487dff79b x_refsource_MISC
- https://github.com/ffuf/ffuf/releases/tag/v2.2.0 x_refsource_MISC