{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55795",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-17T14:40:28.380Z",
        "datePublished": "2026-09-14T15:55:14.000Z",
        "dateUpdated": "2026-09-14T20:06:54.939Z"
    },
    "containers": {
        "cna": {
            "title": "Craft Commerce: Coupon Code Brute-Force via Rate Limit Bypass",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-307",
                            "lang": "en",
                            "description": "CWE-307: Improper Restriction of Excessive Authentication Attempts",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcm",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcm"
                },
                {
                    "name": "https://github.com/craftcms/commerce/commit/a7d365cc33dc4c60c543defb3458bcdb5749bc13",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/craftcms/commerce/commit/a7d365cc33dc4c60c543defb3458bcdb5749bc13"
                },
                {
                    "name": "https://github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5"
                },
                {
                    "name": "https://github.com/craftcms/commerce/releases/tag/4.11.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/craftcms/commerce/releases/tag/4.11.2"
                },
                {
                    "name": "https://github.com/craftcms/commerce/releases/tag/5.6.5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/craftcms/commerce/releases/tag/5.6.5"
                }
            ],
            "affected": [
                {
                    "vendor": "craftcms",
                    "product": "commerce",
                    "versions": [
                        {
                            "version": ">= 4.0.0, < 4.11.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 5.0.0, < 5.6.5",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-14T15:55:14.000Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Craft Commerce is an ecommerce platform for Craft CMS. From 4.0.0 until 4.11.2 and 5.6.5, CartController in src/controllers/CartController.php activates its RateLimiter only when the number POST or GET parameter is supplied. An unauthenticated attacker can submit couponCode values to actionUpdateCart for the session-based cart while omitting number, preventing creation of the IP rate-limit identity and allowing unlimited automated coupon-code guessing and enumeration. This issue is fixed in versions 4.11.2 and 5.6.5."
                }
            ],
            "source": {
                "advisory": "GHSA-h5gm-x9wr-vhcm",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-14T19:22:16.524924Z",
                                "id": "CVE-2026-55795",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "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": "2026-09-14T20:06:54.939Z"
                }
            }
        ]
    }
}