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    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-111805",
        "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "state": "PUBLISHED",
        "assignerShortName": "apache",
        "dateReserved": "2026-10-16T20:16:14.017Z",
        "datePublished": "2026-10-21T19:10:46.319Z",
        "dateUpdated": "2026-10-21T19:10:46.319Z"
    },
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                "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
                "shortName": "apache",
                "dateUpdated": "2026-10-21T19:10:46.319Z"
            },
            "title": "Apache Traffic Server: HTTP/2 Content-Length truncation lets a client trigger backend worker-pool exhaustion",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "description": "CWE-400 Uncontrolled Resource Consumption",
                            "lang": "en",
                            "cweId": "CWE-400",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "affected": [
                {
                    "vendor": "Apache Software Foundation",
                    "product": "Apache Traffic Server",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "8.0.0",
                            "lessThanOrEqual": "8.1.11",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "9.0.0",
                            "lessThanOrEqual": "9.2.15",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "10.0.0",
                            "lessThanOrEqual": "10.1.4",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "10.2.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "value": "Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a truncated HTTP/2 Content-Length value.\n\n\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.\n\n\n\nUsers are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.",
                    "lang": "en",
                    "supportingMedia": [
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                            "type": "text/html",
                            "base64": false,
                            "value": "<p>Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a truncated HTTP/2 Content-Length value.</p><p>This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.</p><p>Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "metrics": [
                {
                    "other": {
                        "type": "Textual description of severity",
                        "content": {
                            "text": "important"
                        }
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
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                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "availabilityImpact": "HIGH",
                        "baseSeverity": "HIGH",
                        "baseScore": 8.6,
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"
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                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "HIGH",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 7.7,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H"
                    }
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            "credits": [
                {
                    "lang": "en",
                    "value": "matrix_cain (YakLang)",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "Alieldeen Khaled Ali",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "Jesse Yang",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "Alex Williams (Pellera Technologies)",
                    "type": "reporter"
                },
                {
                    "lang": "en",
                    "value": "VulnCheck",
                    "type": "coordinator"
                },
                {
                    "lang": "en",
                    "value": "The ASF",
                    "type": "reporter"
                }
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