High
ffuf — security advisory
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.
- Products
- ffuf
- Affected versions
- 1.1.0-1, 1.1.0-1build1, 2.1.0-1, 2.1.0-1build1, 2.1.0-1ubuntu0.24.04.1, 2.1.0-1ubuntu0.24.04.2, 2.1.0-1ubuntu0.24.04.2+esm1, 2.1.0-1ubuntu0.24.04.3, 2.1.0-1ubuntu0.24.04.3+esm1, 2.1.0-1ubuntu0.24.04.3+esm2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-73232
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:15 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-73232
ffuf
Fixed versions: Not specified
ffuf
Fixed versions: Not specified
ffuf
Fixed versions: Not specified
ffuf
Fixed versions: Not specified
Complete source record
{
"id": "6e227f8ab45734f8fa304d9ff964092a6d402214f02e3b8569f590a59f154b17",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-73232",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-73232",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-73232",
"products": [
{
"name": {
"value": "ffuf",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.1.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "ffuf",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.1.0-1build1",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1ubuntu0.24.04.1",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1ubuntu0.24.04.2",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1ubuntu0.24.04.2+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1ubuntu0.24.04.3",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1ubuntu0.24.04.3+esm1",
"evidence": "/affected/1/versions"
},
{
"value": "2.1.0-1ubuntu0.24.04.3+esm2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "ffuf",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.0-1build1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "ffuf",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "2.1.0-1build1",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-73232",
"aliases": [
"UBUNTU-CVE-2026-73232"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ffuf",
"purl": "pkg:deb/ubuntu/ffuf?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.1.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73232.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffuf",
"binary_version": "1.1.0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ffuf",
"purl": "pkg:deb/ubuntu/ffuf?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"1.1.0-1build1",
"2.1.0-1",
"2.1.0-1ubuntu0.24.04.1",
"2.1.0-1ubuntu0.24.04.2",
"2.1.0-1ubuntu0.24.04.2+esm1",
"2.1.0-1ubuntu0.24.04.3",
"2.1.0-1ubuntu0.24.04.3+esm1",
"2.1.0-1ubuntu0.24.04.3+esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73232.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffuf",
"binary_version": "2.1.0-1ubuntu0.24.04.3+esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ffuf",
"purl": "pkg:deb/ubuntu/ffuf?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"2.1.0-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73232.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffuf",
"binary_version": "2.1.0-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ffuf",
"purl": "pkg:deb/ubuntu/ffuf?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2.1.0-1",
"2.1.0-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73232.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffuf",
"binary_version": "2.1.0-1build1"
}
]
}
}
],
"modified": "2026-10-17T13:01:01.582658808Z",
"provider": "osv",
"upstream": [
"CVE-2026-73232"
],
"references": [
"https://ubuntu.com/security/CVE-2026-73232",
"https://www.cve.org/CVERecord?id=CVE-2026-73232",
"https://github.com/ffuf/ffuf/security/advisories/GHSA-jcvh-xf52-2cwm",
"https://github.com/ffuf/ffuf/pull/897",
"https://github.com/ffuf/ffuf/commit/fb0da86c60443b0dddbc9a86e91e3a6487dff79b",
"https://github.com/ffuf/ffuf/releases/tag/v2.2.0"
]
},
"related_cves": [
{
"value": "CVE-2026-73232",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360889,
"published_at": "2026-08-11T20:18:00+00:00"
}