CVE-2026-55768

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Source
https://cve.org/CVERecord?id=CVE-2026-55768
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55768.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55768
Aliases
  • GHSA-5gm5-pvh2-wg46
Downstream
Published
2026-07-30T20:34:32Z
Modified
2026-09-10T08:13:48Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
GoAccess WebSocket Server: Signed 32 bit truncation of the 64 bit frame length causes a remote pre-authentication denial of service
Details

GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through the browser. Prior to version 1.11, the built-in WebSocket server narrows a 64-bit extended frame length into the signed 32-bit WSFrame.payloadlen field before enforcing the maximum frame size, allowing an unauthenticated remote client to bypass the guard and force an approximately 18-exabyte allocation request that terminates the process. This issue is fixed in version 1.11.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-681",
        "CWE-789"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55768.json"
}
References

Affected packages

Git / github.com/allinurl/goaccess

Affected ranges

Type
GIT
Repo
https://github.com/allinurl/goaccess
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ea74b87254d0adc675c087ff49bddd2d60dc01d5
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.11"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

Other
list
v0.*
v0.6
v0.8
v1.*
v1.10
v1.10.1
v1.10.2
v1.4
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.5
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.5.6
v1.5.7
v1.6
v1.6.1
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.7
v1.7.1
v1.7.2
v1.8
v1.8.1
v1.9
v1.9.1
v1.9.2
v1.9.4

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55768.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "7186399750841121500367791321623152419",
            "length": 328
        },
        "id": "CVE-2026-55768-3f101233",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5",
        "target": {
            "file": "src/websocket.c",
            "function": "ws_realloc_frm_payload"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "72968566362850178300269376346680489484",
                "289968415212257825840849053371240590075",
                "213943987341781513548961245105007183047",
                "239418607921541109711035770235692747219"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-55768-6e07c8c0",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5",
        "target": {
            "file": "src/websocket.h"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "77846482677984869868676388125201215232",
            "length": 1362
        },
        "id": "CVE-2026-55768-8a6753e5",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5",
        "target": {
            "file": "src/websocket.c",
            "function": "ws_get_frm_header"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "291697635191400429069637017194731479423",
                "246433851209961756664872865185199574059",
                "280628685390616385707598445997462597206",
                "74569838204938262304612002467145103123",
                "42673025952239434808026837863032877009",
                "29048035309593467849159723649617147307",
                "144667762103213679866831026184068838009",
                "268910300533212774598564931024783089754"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-55768-921c010a",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/allinurl/goaccess/commit/ea74b87254d0adc675c087ff49bddd2d60dc01d5",
        "target": {
            "file": "src/websocket.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-10T08:13:48Z"