CVE-2026-63451

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Source

https://cve.org/CVERecord?id=CVE-2026-63451

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63451.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-63451

Aliases

GHSA-6qwq-j83r-qp34

Downstream

Published

2026-09-18T20:15:52Z

Modified

2026-09-30T08:06:03Z

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: frame rules without content and with transform can cause heap buffer overflow during rule load

Details

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, a locally supplied detection rule that combines frame inspection without content and a transformed match without content can make src/detect-engine-prefilter.c select multiple non-prefilter frame engines while preparing signatures for non-prefilter inspection. Loading the crafted rule, including in test mode, can trigger a heap buffer overflow and crash Suricata; network traffic alone cannot reach the flaw. This issue is fixed in version 8.0.6.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63451.json"
}

References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type

GIT

Repo

https://github.com/oisf/suricata

Events

Introduced

9956286fb89f9cad9e9f95b99dc751f8666617b7

Fixed

4c28cc1b4ac64f48efdca6ce3e09748227a04a7e

Fixed

5449ae170bfce213907d9bab87143a59774ed48f

Fixed

d62acf5d75a61b76b16815e773408852f41b1975

Database specific

Show details

{
    "cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.6"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

suricata-8.*

suricata-8.0.0

suricata-8.0.1

suricata-8.0.2

suricata-8.0.3

suricata-8.0.4

suricata-8.0.5

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63451.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "93289737976443247115691829145665753149",
                "35995710092195093778646866375763661066",
                "270335985547184371727681190062802908481",
                "111607904644539555151298765751505943890"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-63451-37584fee",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/d62acf5d75a61b76b16815e773408852f41b1975",
        "target": {
            "file": "src/detect-engine-prefilter.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "219190488257231766848358096501503531074",
            "length": 9391
        },
        "id": "CVE-2026-63451-799b1285",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/d62acf5d75a61b76b16815e773408852f41b1975",
        "target": {
            "file": "src/detect-engine-prefilter.c",
            "function": "SetupNonPrefilter"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "93289737976443247115691829145665753149",
                "35995710092195093778646866375763661066",
                "270335985547184371727681190062802908481",
                "111607904644539555151298765751505943890"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-63451-c4fa8bfe",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/5449ae170bfce213907d9bab87143a59774ed48f",
        "target": {
            "file": "src/detect-engine-prefilter.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "222073690318783035509412228828003397108",
            "length": 9267
        },
        "id": "CVE-2026-63451-ee1e5bfe",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/5449ae170bfce213907d9bab87143a59774ed48f",
        "target": {
            "file": "src/detect-engine-prefilter.c",
            "function": "SetupNonPrefilter"
        }
    }
]

vanir_signatures_modified

"2026-09-30T08:06:03Z"