CVE-2026-45770

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Source
https://cve.org/CVERecord?id=CVE-2026-45770
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45770.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45770
Aliases
  • GHSA-653j-cc95-vj4c
Downstream
Related
Published
2026-09-10T21:42:03Z
Modified
2026-09-13T03:30:58Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
Suricata lua: excessive flow variable registration can bypass sandbox
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, a Lua rule that registers too many flow variables can corrupt Lua detection state and may bypass Suricata's restricted Lua sandbox. This requires an affected Lua script/rule to be loaded. Excessive flow variables being registered may also cause Suricata to crash. Version 8.0.5 contains a fix. As a workaround, disable security.lua.allow-rules unless Lua rules are required.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-693",
        "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45770.json"
}
References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type
GIT
Repo
https://github.com/oisf/suricata
Events
Introduced
9956286fb89f9cad9e9f95b99dc751f8666617b7
Fixed
5611b60c6172fe4204cd69a9c9d466b6632dd0c7
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.5"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

suricata-8.*
suricata-8.0.0
suricata-8.0.1
suricata-8.0.2
suricata-8.0.3
suricata-8.0.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45770.json"