ffuf denial of service (OOM) via HTTP response decompression bomb
Published Aug 11, 2026
7.5
HIGHCVSS 3.1
EPSS 0.63%
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 products
-
- Version < 2.2.0StatusaffectedConstraints-
- Version
No data.
No data.
No Red Hat product state for this CVE.
github.com/ffuf/ffuf/v2
Go
Introduced 0 Fixed 2.2.0github.com/ffuf/ffuf
Go
Introduced 0 Fixed not fixed
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/ffuf/ffuf/v2 | 0 | 2.2.0 |
| Go | github.com/ffuf/ffuf | 0 | not fixed |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Aug 12, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Aug–Oct 2026- EPSS v5
Percentile over time
- EPSS v5
Table of values (2 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.63% (0.00630) | 48.32th | v5 (v2026.06.15) |
| Aug 12, 2026 | 0.45% (0.00446) | 36.90th | v5 (v2026.06.15) |
References (6)
- https://github.com/advisories/GHSA-jcvh-xf52-2cwm Advisory
- https://github.com/ffuf/ffuf/commit/fb0da86c60443b0dddbc9a86e91e3a6487dff79b x_refsource_MISC
- https://github.com/ffuf/ffuf/pull/897 x_refsource_MISC
- https://github.com/ffuf/ffuf/releases/tag/v2.2.0 x_refsource_MISC
- https://github.com/ffuf/ffuf/security/advisories/GHSA-jcvh-xf52-2cwm x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-73232
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-jcvh-xf52-2cwm | Advisory | |
| https://github.com/ffuf/ffuf/commit/fb0da86c60443b0dddbc9a86e91e3a6487dff79b | x_refsource_MISC | |
| https://github.com/ffuf/ffuf/pull/897 | x_refsource_MISC | |
| https://github.com/ffuf/ffuf/releases/tag/v2.2.0 | x_refsource_MISC | |
| https://github.com/ffuf/ffuf/security/advisories/GHSA-jcvh-xf52-2cwm | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-73232 |
Change history (0)
No recorded changes yet.