{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-46556",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-04-24T21:10:48.173Z",
        "datePublished": "2025-11-04T00:20:28.193Z",
        "dateUpdated": "2025-11-06T20:44:40.100Z"
    },
    "containers": {
        "cna": {
            "title": "MantisBT is Vulnerable to Denial-of-Service (DoS) attack via Excessive Note Length",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-770",
                            "lang": "en",
                            "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-r3jf-hm7q-qfw5",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-r3jf-hm7q-qfw5"
                },
                {
                    "name": "https://github.com/mantisbt/mantisbt/commit/c99a41272532ba49b5c8dccb7797afead9864234",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mantisbt/mantisbt/commit/c99a41272532ba49b5c8dccb7797afead9864234"
                },
                {
                    "name": "https://github.com/mantisbt/mantisbt/commit/d5cec6bffb44d54bd412c186b9baa409b1aa4238",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mantisbt/mantisbt/commit/d5cec6bffb44d54bd412c186b9baa409b1aa4238"
                },
                {
                    "name": "https://github.com/mantisbt/mantisbt/commit/e9119c68b4a0eaa0bbde3deb121e81f5f7157361",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/mantisbt/mantisbt/commit/e9119c68b4a0eaa0bbde3deb121e81f5f7157361"
                }
            ],
            "affected": [
                {
                    "vendor": "mantisbt",
                    "product": "mantisbt",
                    "versions": [
                        {
                            "version": "< 2.27.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-11-04T00:20:28.193Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.27.1 and below allow attackers to permanently corrupt issue activity logs by submitting extremely long notes (tested with 4,788,761 characters) due to a lack of server-side validation of note length. Once such a note is added, the activity stream UI fails to render; therefore, new notes cannot be displayed, effectively breaking all future collaboration on the issue. This issue is fixed in version 2.27.2."
                }
            ],
            "source": {
                "advisory": "GHSA-r3jf-hm7q-qfw5",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-11-06T20:44:31.776476Z",
                                "id": "CVE-2025-46556",
                                "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": "2025-11-06T20:44:40.100Z"
                }
            }
        ]
    }
}