ubuntu-cve-2026-45752
Vulnerability from osv_ubuntu
Published
2026-09-14 00:00
Modified
2026-09-14 00:00
Summary
Details
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, when certain detection transforms are chained, the decompress transform pipeline could read from an inspection buffer after it had been reallocated and freed. The issue is reached during network traffic processing, but requires a malicious rule as Suricata will crash whatever the traffic. Version 8.0.5 contains a fix. As a workaround, avoid rules that chain gunzip or zlib_deflate with max-size bigger than 4096 after another transform.
Severity
5.9 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "3.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata@3.0-1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.8-1build1",
"2.0.9-1",
"2.0.10-1",
"2.0.10-2",
"2.0.11-1",
"3.0-1"
]
},
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata@3.2-2ubuntu3?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.2-2ubuntu3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:6.0.4-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata@1:6.0.4-3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:6.0.4-2",
"1:6.0.4-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:7.0.3-1build3"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata@1:7.0.3-1build3?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "1:8.0.3-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "suricata",
"purl": "pkg:deb/ubuntu/suricata@1:8.0.3-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
}
],
"aliases": [],
"details": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, when certain detection transforms are chained, the decompress transform pipeline could read from an inspection buffer after it had been reallocated and freed. The issue is reached during network traffic processing, but requires a malicious rule as Suricata will crash whatever the traffic. Version 8.0.5 contains a fix. As a workaround, avoid rules that chain `gunzip` or `zlib_deflate` with `max-size` bigger than 4096 after another transform.",
"id": "UBUNTU-CVE-2026-45752",
"modified": "2026-09-14T00:00:00Z",
"published": "2026-09-14T00:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-45752"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45752"
},
{
"type": "REPORT",
"url": "https://github.com/OISF/suricata/security/advisories/GHSA-qmc9-vqq2-8mv3"
},
{
"type": "REPORT",
"url": "https://redmine.openinfosecfoundation.org/issues/8541"
},
{
"type": "REPORT",
"url": "https://github.com/OISF/suricata/commit/11d1fe1ca866d82e8bb3dd4493016188d890aebd"
},
{
"type": "REPORT",
"url": "https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315"
},
{
"type": "REPORT",
"url": "https://redmine.openinfosecfoundation.org/issues/8536"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-45752"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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