{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2025-25200",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-02-03T19:30:53.400Z",
        "datePublished": "2025-02-12T17:59:04.615Z",
        "dateUpdated": "2025-02-12T19:29:10.232Z"
    },
    "containers": {
        "cna": {
            "title": "Koa has Inefficient Regular Expression Complexity",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1333",
                            "lang": "en",
                            "description": "CWE-1333: Inefficient Regular Expression Complexity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "HIGH",
                        "baseScore": 9.2,
                        "baseSeverity": "CRITICAL",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/koajs/koa/security/advisories/GHSA-593f-38f6-jp5m",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/koajs/koa/security/advisories/GHSA-593f-38f6-jp5m"
                },
                {
                    "name": "https://github.com/koajs/koa/commit/5054af6e31ffd451a4151a1fe144cef6e5d0d83c",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/koajs/koa/commit/5054af6e31ffd451a4151a1fe144cef6e5d0d83c"
                },
                {
                    "name": "https://github.com/koajs/koa/commit/5f294bb1c7c8d9c61904378d250439a321bffd32",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/koajs/koa/commit/5f294bb1c7c8d9c61904378d250439a321bffd32"
                },
                {
                    "name": "https://github.com/koajs/koa/commit/93fe903fc966635a991bcf890cfc3427d33a1a08",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/koajs/koa/commit/93fe903fc966635a991bcf890cfc3427d33a1a08"
                },
                {
                    "name": "https://github.com/koajs/koa/blob/master/lib/request.js#L259",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/koajs/koa/blob/master/lib/request.js#L259"
                },
                {
                    "name": "https://github.com/koajs/koa/blob/master/lib/request.js#L404",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/koajs/koa/blob/master/lib/request.js#L404"
                },
                {
                    "name": "https://github.com/koajs/koa/releases/tag/2.15.4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/koajs/koa/releases/tag/2.15.4"
                }
            ],
            "affected": [
                {
                    "vendor": "koajs",
                    "product": "koa",
                    "versions": [
                        {
                            "version": "< 0.21.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.0.0, < 1.7.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 2.0.0-alpha.1, < 2.15.4",
                            "status": "affected"
                        },
                        {
                            "version": ">= 3.0.0-alpha.0, < < 3.0.0-alpha.3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-02-12T17:59:04.615Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Koa is expressive middleware for Node.js using ES2017 async functions. Prior to versions 0.21.2, 1.7.1, 2.15.4, and 3.0.0-alpha.3, Koa uses an evil regex to parse the `X-Forwarded-Proto` and `X-Forwarded-Host` HTTP headers. This can be exploited to carry out a Denial-of-Service attack. Versions 0.21.2, 1.7.1, 2.15.4, and 3.0.0-alpha.3 fix the issue."
                }
            ],
            "source": {
                "advisory": "GHSA-593f-38f6-jp5m",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-02-12T18:33:35.286450Z",
                                "id": "CVE-2025-25200",
                                "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": "2025-02-12T19:29:10.232Z"
                }
            }
        ]
    }
}