CVE-2026-45761

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Source
https://cve.org/CVERecord?id=CVE-2026-45761
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45761.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45761
Aliases
  • GHSA-r74x-74x5-r9vm
Downstream
Related
Published
2026-09-10T21:02:48Z
Modified
2026-09-12T03:46:29Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Suricata detect: case-insensitive frame handling can cause heap buffer overflow during rule load
Details

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, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45761.json"
}
References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type
GIT
Repo
https://github.com/oisf/suricata
Events
Introduced
9956286fb89f9cad9e9f95b99dc751f8666617b7
Fixed
5611b60c6172fe4204cd69a9c9d466b6632dd0c7
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
534864353e8d6e5d50991546f96e33f547879aec
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.5"
        },
        {
            "introduced": "0"
        },
        {
            "fixed": "7.0.16"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

suricata-0.*
suricata-0.8.2
suricata-1.*
suricata-1.0.0
suricata-1.0.1
suricata-1.0.2
suricata-1.1
suricata-1.1beta1
suricata-1.1beta2
suricata-1.1beta3
suricata-1.1rc1
suricata-1.2
suricata-1.2.1
suricata-1.2beta1
suricata-1.2rc1
suricata-1.3
suricata-1.3.1
suricata-1.3beta1
suricata-1.3beta2
suricata-1.3rc1
suricata-1.4
suricata-1.4beta1
suricata-1.4beta2
suricata-1.4beta3
suricata-1.4rc1
suricata-2.*
suricata-2.0
suricata-2.0.1
suricata-2.0.1rc1
suricata-2.0.2
suricata-2.0beta1
suricata-2.0beta2
suricata-2.0rc1
suricata-2.0rc2
suricata-2.0rc3
suricata-2.1beta1
suricata-2.1beta2
suricata-2.1beta3
suricata-2.1beta4
suricata-3.*
suricata-3.0
suricata-3.0.1
suricata-3.0.1RC1
suricata-3.0RC1
suricata-3.0RC2
suricata-3.0RC3
suricata-3.1
suricata-3.1.1
suricata-3.1.2
suricata-3.1RC1
suricata-3.2
suricata-3.2.1
suricata-3.2RC1
suricata-3.2beta1
suricata-4.*
suricata-4.0.0
suricata-4.0.0-beta1
suricata-4.0.0-rc1
suricata-4.0.0-rc2
suricata-4.0.1
suricata-4.1.0
suricata-4.1.0-beta1
suricata-4.1.0-rc1
suricata-4.1.0-rc2
suricata-4.1.1
suricata-4.1.2
suricata-5.*
suricata-5.0.0
suricata-5.0.0-beta1
suricata-5.0.0-rc1
suricata-5.0.1
suricata-6.*
suricata-6.0.0
suricata-6.0.0-beta1
suricata-6.0.0-rc1
suricata-6.0.1
suricata-7.*
suricata-7.0.0
suricata-7.0.0-beta1
suricata-7.0.0-rc1
suricata-7.0.0-rc2
suricata-7.0.1
suricata-7.0.10
suricata-7.0.11
suricata-7.0.12
suricata-7.0.13
suricata-7.0.14
suricata-7.0.15
suricata-7.0.2
suricata-7.0.3
suricata-7.0.4
suricata-7.0.5
suricata-7.0.6
suricata-7.0.7
suricata-7.0.8
suricata-7.0.9
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-2026-45761.json"