CVE-2026-22264

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Source
https://cve.org/CVERecord?id=CVE-2026-22264
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22264.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-22264
Aliases
  • GHSA-mqr8-m3m4-2hw5
Downstream
Related
Published
2026-01-27T18:33:50.354Z
Modified
2026-07-21T23:58:19.460864Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
Suricata detect/alert: heap-use-after-free on alert queue expansion
Details

Suricata is a network IDS, IPS and NSM engine. Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not run untrusted rulesets or run with less than 65536 signatures that can match on the same packet.

Database specific 
{
    "cwe_ids": [
        "CWE-416"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22264.json"
}
References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type
GIT
Repo
https://github.com/oisf/suricata
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
163bd652dfa92959e918a952429b939fa81f7b88
Introduced
9956286fb89f9cad9e9f95b99dc751f8666617b7
Fixed
3bd9f773bdc65d7bede2f0576790a68fb68b7476
Fixed
549d7bf60616de8e54686a188196453b5b22f715
Fixed
5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2
Fixed
ac1eb394181530430fb7262969f423a1bf8f209b
Database specific 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.0.14"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.3"
        }
    ],
    "cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*"
}

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-7.0.2
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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-22264.json"
vanir_signatures_modified 
"2026-07-21T23:58:19Z"
vanir_signatures 
[
    {
        "digest": {
            "length": 632.0,
            "function_hash": "220388116050071974834251253798595150715"
        },
        "deprecated": false,
        "id": "CVE-2026-22264-09f84eb5",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2",
        "target": {
            "function": "AlertQueueExpand",
            "file": "src/detect-engine-alert.c"
        }
    },
    {
        "digest": {
            "length": 632.0,
            "function_hash": "220388116050071974834251253798595150715"
        },
        "deprecated": false,
        "id": "CVE-2026-22264-78a4ee45",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715",
        "target": {
            "function": "AlertQueueExpand",
            "file": "src/detect-engine-alert.c"
        }
    },
    {
        "digest": {
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                "123920765186006667901463276368807113422",
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                "18198949829810559732235514597341131176",
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                "51410176130097310889585856310677363733",
                "123321839734904507382219264804267680029",
                "76646563018386585864914465955855986373",
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                "78062899674243063249111462958528328692"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2026-22264-859b4937",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715",
        "target": {
            "file": "src/detect-engine-alert.c"
        }
    },
    {
        "digest": {
            "line_hashes": [
                "243318784497944403852614724009784700844",
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            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2026-22264-b9f19b5e",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b",
        "target": {
            "file": "src/detect-engine-alert.c"
        }
    },
    {
        "digest": {
            "length": 632.0,
            "function_hash": "220388116050071974834251253798595150715"
        },
        "deprecated": false,
        "id": "CVE-2026-22264-dd1eaf61",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b",
        "target": {
            "function": "AlertQueueExpand",
            "file": "src/detect-engine-alert.c"
        }
    },
    {
        "digest": {
            "line_hashes": [
                "243318784497944403852614724009784700844",
                "123920765186006667901463276368807113422",
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                "143563829728163562244176896829874606090"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2026-22264-de88c2d5",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2",
        "target": {
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    }
]