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
2026-09-18T03:46:42Z
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
21ec99aa76cc5406007ce12a4891f2eaedb02291
Fixed
534864353e8d6e5d50991546f96e33f547879aec
Introduced
9956286fb89f9cad9e9f95b99dc751f8666617b7
Fixed
5611b60c6172fe4204cd69a9c9d466b6632dd0c7
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "7.0.0"
        },
        {
            "fixed":  "7.0.16"
        },
        {
            "introduced":  "8.0.0"
        },
        {
            "fixed":  "8.0.5"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

suricata-7.*
suricata-7.0.0
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"