{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-67236",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-28T19:50:39.438Z",
        "datePublished": "2026-09-25T15:59:10.275Z",
        "dateUpdated": "2026-09-25T15:59:10.275Z"
    },
    "containers": {
        "cna": {
            "title": "RabbitMQ: Plaintext username:password stored in an insecure cookie after successful POST /login",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-312",
                            "lang": "en",
                            "description": "CWE-312: Cleartext Storage of Sensitive Information",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-88vh-gx85-p36m",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-88vh-gx85-p36m"
                },
                {
                    "name": "https://github.com/rabbitmq/rabbitmq-server/commit/df9e7f4c0afd311a672705f020d301efad355745",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rabbitmq/rabbitmq-server/commit/df9e7f4c0afd311a672705f020d301efad355745"
                },
                {
                    "name": "https://github.com/rabbitmq/rabbitmq-server/commit/edf1fbc7217aaf736955d2e13c9534901a2e0778",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rabbitmq/rabbitmq-server/commit/edf1fbc7217aaf736955d2e13c9534901a2e0778"
                },
                {
                    "name": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.8"
                },
                {
                    "name": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.2"
                }
            ],
            "affected": [
                {
                    "vendor": "rabbitmq",
                    "product": "rabbitmq-server",
                    "versions": [
                        {
                            "version": ">= 4.2.0, < 4.2.8",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.3.0, < 4.3.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-25T15:59:10.275Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, a successful POST /login caused is_authorized/2 to set an auth cookie containing base64-encoded username:password credentials without HttpOnly, Secure, SameSite, or expiration protections. Because base64 is encoding rather than encryption, an attacker with same-origin cross-site scripting, an HTTP-readable network position, or local access to the browser cookie store could recover the actual login credentials; older browsers that treated an absent SameSite attribute as None also sent the cookie cross-site. This issue is fixed in versions 4.2.8 and 4.3.2."
                }
            ],
            "source": {
                "advisory": "GHSA-88vh-gx85-p36m",
                "discovery": "UNKNOWN"
            }
        }
    }
}