vuln-cve/data/2026/27xxx/CVE-2026-27128.json

{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-27128",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-17T18:42:27.043Z",
        "datePublished": "2026-02-24T02:42:53.706Z",
        "dateUpdated": "2026-02-28T02:13:48.422Z"
    },
    "containers": {
        "cna": {
            "title": "Craft CMS's race condition in Token Service potentially allows for token usage greater than the token limit",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-367",
                            "lang": "en",
                            "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "HIGH",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/craftcms/cms/security/advisories/GHSA-6fx5-5cw5-4897",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/craftcms/cms/security/advisories/GHSA-6fx5-5cw5-4897"
                },
                {
                    "name": "https://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf"
                }
            ],
            "affected": [
                {
                    "vendor": "craftcms",
                    "product": "cms",
                    "versions": [
                        {
                            "version": ">= 4.5.0-RC1, < 4.16.19",
                            "status": "affected"
                        },
                        {
                            "version": ">= 5.0.0-RC1, < 5.8.23",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-02-24T02:42:53.706Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Craft is a content management system (CMS). In versions 4.5.0-RC1 through 4.16.18 and 5.0.0-RC1 through 5.8.22, a Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The `getTokenRoute()` method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes. To make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place. For this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user. Versions 4.16.19 and 5.8.23 patch the issue."
                }
            ],
            "source": {
                "advisory": "GHSA-6fx5-5cw5-4897",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-28T02:13:24.368912Z",
                                "id": "CVE-2026-27128",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-02-28T02:13:48.422Z"
                }
            }
        ]
    }
}