Low
Suricata eve/alert: http1 xff handling can lead to denial of service
Type: advisorySources: OSV
Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-22261
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 09:00 UTC · Revision 1
Source evidence
Suricata eve/alert: http1 xff handling can lead to denial of service
core-osv · Original sourcePublished 27 Jan 2026, 18:10 UTC
Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.
osv:CVE-2026-22261
Complete source record
{
"id": "05ac248d056e3c83d86f5a81187a20d36359f7b33f4857b90b074870d43b6cf8",
"url": "https://osv.dev/vulnerability/CVE-2026-22261",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Suricata eve/alert: http1 xff handling can lead to denial of service",
"summary": "Suricata is a network IDS, IPS and NSM engine. Prior to versions 8.0.3 and 7.0.14, various inefficiencies in xff handling, especially for alerts not triggered in a tx, can lead to severe slowdowns. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, disable XFF support in the eve configuration. The setting is disabled by default.",
"evidence": "osv:CVE-2026-22261",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2026-22261",
"aliases": [
"CVE-2026-22261",
"GHSA-5jvg-5j3p-34cf"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/oisf/suricata",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "163bd652dfa92959e918a952429b939fa81f7b88"
},
{
"introduced": "9956286fb89f9cad9e9f95b99dc751f8666617b7"
},
{
"fixed": "3bd9f773bdc65d7bede2f0576790a68fb68b7476"
},
{
"fixed": "3f0725b34c7871c2de4346c8af872f10f4501e44"
},
{
"fixed": "af246ae7ab1b70c09f83c0619b253095ccc18667"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "7.0.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "3f0725b34c7871c2de4346c8af872f10f4501e44"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "af246ae7ab1b70c09f83c0619b253095ccc18667"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"suricata-8.0.2",
"suricata-7.0.13",
"suricata-7.0.12",
"suricata-8.0.1",
"suricata-8.0.0",
"suricata-7.0.11",
"suricata-7.0.10",
"suricata-7.0.9",
"suricata-7.0.8",
"suricata-7.0.7",
"suricata-7.0.6",
"suricata-7.0.5",
"suricata-7.0.4",
"suricata-7.0.3",
"suricata-7.0.2",
"suricata-7.0.1",
"suricata-7.0.0",
"suricata-7.0.0-rc2",
"suricata-7.0.0-rc1",
"suricata-7.0.0-beta1",
"suricata-6.0.1",
"suricata-6.0.0",
"suricata-6.0.0-rc1",
"suricata-6.0.0-beta1",
"suricata-5.0.1",
"suricata-5.0.0",
"suricata-5.0.0-rc1",
"suricata-5.0.0-beta1",
"suricata-4.1.2",
"suricata-4.1.1",
"suricata-4.1.0",
"suricata-4.1.0-rc2",
"suricata-4.1.0-rc1",
"suricata-4.1.0-beta1",
"suricata-4.0.1",
"suricata-4.0.0",
"suricata-4.0.0-rc2",
"suricata-4.0.0-rc1",
"suricata-4.0.0-beta1",
"suricata-3.2.1",
"suricata-3.2",
"suricata-3.2RC1",
"suricata-3.2beta1",
"suricata-3.1.2",
"suricata-3.1.1",
"suricata-3.1",
"suricata-3.0.1",
"suricata-3.1RC1",
"suricata-3.0.1RC1",
"suricata-3.0",
"suricata-3.0RC3",
"suricata-3.0RC2",
"suricata-3.0RC1",
"suricata-2.1beta4",
"suricata-2.1beta3",
"suricata-2.1beta2",
"suricata-2.1beta1",
"suricata-2.0.2",
"suricata-2.0.1",
"suricata-2.0.1rc1",
"suricata-2.0",
"suricata-2.0rc3",
"suricata-2.0rc2",
"suricata-2.0rc1",
"suricata-2.0beta2",
"suricata-2.0beta1",
"suricata-1.4",
"suricata-1.4rc1",
"suricata-1.4beta3",
"suricata-1.4beta2",
"suricata-1.4beta1",
"suricata-1.3.1",
"suricata-1.3",
"suricata-1.3rc1",
"suricata-1.3beta2",
"suricata-1.3beta1",
"suricata-1.2.1",
"suricata-1.2",
"suricata-1.2rc1",
"suricata-1.2beta1",
"suricata-1.1",
"suricata-1.1rc1",
"suricata-1.1beta3",
"suricata-1.1beta2",
"suricata-1.1beta1",
"suricata-1.0.2",
"suricata-1.0.1",
"suricata-1.0.0",
"suricata-0.8.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22261.json"
}
}
],
"modified": "2026-10-28T02:30:34.024560140Z",
"provider": "osv",
"references": [
"https://redmine.openinfosecfoundation.org/issues/8156",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22261.json",
"https://github.com/OISF/suricata/security/advisories/GHSA-5jvg-5j3p-34cf",
"https://nvd.nist.gov/vuln/detail/CVE-2026-22261",
"https://github.com/OISF/suricata/commit/3f0725b34c7871c2de4346c8af872f10f4501e44",
"https://github.com/OISF/suricata/commit/af246ae7ab1b70c09f83c0619b253095ccc18667"
],
"provider_metadata": {
"cwe_ids": [
"CWE-1050"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22261.json"
}
},
"related_cves": [
{
"value": "CVE-2026-22261",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 501293,
"published_at": "2026-01-27T18:10:27.881+00:00"
}