CVE-2026-45768

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Source
https://cve.org/CVERecord?id=CVE-2026-45768
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45768.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45768
Aliases
  • GHSA-cr4x-w4c4-57p7
Downstream
Related
Published
2026-09-10T21:37:17Z
Modified
2026-09-13T03:30:42Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Suricata ldap: unbounded responses per transaction can lead to resource exhaustion
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, LDAP transaction state could store an unbounded number of responses. Because LDAP can be processed over UDP, crafted traffic may cause Suricata to consume excessive memory, potentially resulting in denial of service. Version 8.0.5 contains a fix. As a workaround, disable LDAP application-layer parsing where it is not required. Alternatively, use a rule like alert ldap any any -> any any (sid: 1; ldap.responses.count: >1024; bypass;).

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-400",
        "CWE-770"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45768.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-2026-45768.json"