{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-111749",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-16T17:52:09.081Z",
        "datePublished": "2026-10-19T17:04:42.374Z",
        "dateUpdated": "2026-10-22T20:52:37.188Z"
    },
    "containers": {
        "cna": {
            "title": "AIOHTTP: Cookie from subdomain can remove Host-Only Scope from existing cookies",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-565",
                            "lang": "en",
                            "description": "CWE-565: Reliance on Cookies without Validation and Integrity Checking",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "LOW",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 2.3,
                        "baseSeverity": "LOW",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gx76-c99x-2c96",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-gx76-c99x-2c96"
                },
                {
                    "name": "https://github.com/aio-libs/aiohttp/commit/6a07c171ef9f3be583e2907dcd1931372efca8d6",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/aio-libs/aiohttp/commit/6a07c171ef9f3be583e2907dcd1931372efca8d6"
                },
                {
                    "name": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4"
                }
            ],
            "affected": [
                {
                    "vendor": "aio-libs",
                    "product": "aiohttp",
                    "versions": [
                        {
                            "version": "< 3.14.4",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-19T17:04:42.374Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4."
                }
            ],
            "source": {
                "advisory": "GHSA-gx76-c99x-2c96",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-22T20:52:28.753978Z",
                                "id": "CVE-2026-111749",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-22T20:52:37.188Z"
                }
            }
        ]
    }
}