High
suricata — security advisory
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2.
- Products
- suricata
- Affected versions
- 1:6.0.4-2, 1:6.0.4-3, 1:7.0.0-2, 1:7.0.10-1, 1:7.0.2-1, 1:7.0.2-1build1, 1:7.0.3-1build1, 1:7.0.3-1build3, 1:8.0.1-3build1, 1:8.0.2-1, 1:8.0.2-1build1, 1:8.0.3-1, 1:8.0.5-1, 1:8.0.6-1, 2.0.10-1, 2.0.10-2, 2.0.11-1, 2.0.8-1build1, 2.0.9-1, 3.0-1, 3.2-2ubuntu3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-46387
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:05 UTC · Revision 1
Source evidence
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2.
osv:UBUNTU-CVE-2026-46387
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
Complete source record
{
"id": "14d0d4104ec570ed35e629897ece84816590a399caf9c986ecaf7c1f78d2680b",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-46387",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-46387",
"summary": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2.",
"evidence": "osv:UBUNTU-CVE-2026-46387",
"products": [
{
"name": {
"value": "suricata",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.0.8-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.9-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.10-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.10-2",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.11-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.0-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "suricata",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.2-2ubuntu3",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "suricata",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:6.0.4-2",
"evidence": "/affected/2/versions"
},
{
"value": "1:6.0.4-3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "suricata",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:7.0.0-2",
"evidence": "/affected/3/versions"
},
{
"value": "1:7.0.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "1:7.0.2-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "1:7.0.3-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "1:7.0.3-1build3",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "suricata",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:8.0.3-1",
"evidence": "/affected/4/versions"
},
{
"value": "1:8.0.5-1",
"evidence": "/affected/4/versions"
},
{
"value": "1:8.0.6-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "suricata",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1:7.0.10-1",
"evidence": "/affected/5/versions"
},
{
"value": "1:8.0.1-3build1",
"evidence": "/affected/5/versions"
},
{
"value": "1:8.0.2-1",
"evidence": "/affected/5/versions"
},
{
"value": "1:8.0.2-1build1",
"evidence": "/affected/5/versions"
},
{
"value": "1:8.0.3-1",
"evidence": "/affected/5/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-46387",
"aliases": [
"UBUNTU-CVE-2026-46387"
],
"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": "suricata",
"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"2.0.8-1build1",
"2.0.9-1",
"2.0.10-1",
"2.0.10-2",
"2.0.11-1",
"3.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46387.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "3.0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"3.2-2ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46387.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libhtp-0.5.23-1",
"binary_version": "3.2-2ubuntu3"
},
{
"binary_name": "suricata",
"binary_version": "3.2-2ubuntu3"
},
{
"binary_name": "suricata-hyperscan",
"binary_version": "3.2-2ubuntu3"
},
{
"binary_name": "suricata-oinkmaster",
"binary_version": "3.2-2ubuntu3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1:6.0.4-2",
"1:6.0.4-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46387.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:6.0.4-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1:7.0.0-2",
"1:7.0.2-1",
"1:7.0.2-1build1",
"1:7.0.3-1build1",
"1:7.0.3-1build3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46387.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:7.0.3-1build3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1:8.0.3-1",
"1:8.0.5-1",
"1:8.0.6-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46387.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:8.0.6-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1:7.0.10-1",
"1:8.0.1-3build1",
"1:8.0.2-1",
"1:8.0.2-1build1",
"1:8.0.3-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-46387.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:8.0.3-1"
}
]
}
}
],
"modified": "2026-10-17T13:00:12.128929420Z",
"provider": "osv",
"upstream": [
"CVE-2026-46387"
],
"references": [
"https://ubuntu.com/security/CVE-2026-46387",
"https://www.cve.org/CVERecord?id=CVE-2026-46387"
]
},
"related_cves": [
{
"value": "CVE-2026-46387",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360396,
"published_at": "2026-09-10T15:17:00+00:00"
}