{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-53861",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2024-11-22T17:30:02.144Z",
        "datePublished": "2024-11-29T18:43:07.644Z",
        "dateUpdated": "2024-12-02T18:10:35.507Z"
    },
    "containers": {
        "cna": {
            "title": "Issuer field partial matches allowed in pyjwt",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-697",
                            "lang": "en",
                            "description": "CWE-697: Incorrect Comparison",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 2.2,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-75c5-xw7c-p5pm",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/jpadilla/pyjwt/security/advisories/GHSA-75c5-xw7c-p5pm"
                },
                {
                    "name": "https://github.com/jpadilla/pyjwt/commit/1570e708672aa9036bc772476beae8bfa48f4131#diff-6893ad4a1c5a36b8af3028db8c8bc3b62418149843fc382faf901eaab008e380R366",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/jpadilla/pyjwt/commit/1570e708672aa9036bc772476beae8bfa48f4131#diff-6893ad4a1c5a36b8af3028db8c8bc3b62418149843fc382faf901eaab008e380R366"
                },
                {
                    "name": "https://github.com/jpadilla/pyjwt/commit/33022c25525c1020869c71ce2a4109e44ae4ced1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/jpadilla/pyjwt/commit/33022c25525c1020869c71ce2a4109e44ae4ced1"
                }
            ],
            "affected": [
                {
                    "vendor": "jpadilla",
                    "product": "pyjwt",
                    "versions": [
                        {
                            "version": "= 2.10.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2024-12-02T18:10:35.507Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pyjwt is a JSON Web Token implementation in Python. An incorrect string comparison is run for `iss` checking, resulting in `\"acb\"` being accepted for `\"_abc_\"`. This is a bug introduced in version 2.10.0: checking the \"iss\" claim changed from `isinstance(issuer, list)` to `isinstance(issuer, Sequence)`. Since str is a Sequnce, but not a list, `in` is also used for string comparison. This results in `if \"abc\" not in \"__abcd__\":` being checked instead of `if \"abc\" != \"__abc__\":`. Signature checks are still present so real world impact is likely limited to denial of service scenarios. This issue has been patched in version 2.10.1. All users are advised to upgrade. There are no known workarounds for this vulnerability."
                }
            ],
            "source": {
                "advisory": "GHSA-75c5-xw7c-p5pm",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "affected": [
                    {
                        "vendor": "pyjwt_project",
                        "product": "pyjwt",
                        "cpes": [
                            "cpe:2.3:a:pyjwt_project:pyjwt:2.10.0:*:*:*:*:*:*:*"
                        ],
                        "defaultStatus": "unknown",
                        "versions": [
                            {
                                "version": "2.10.0",
                                "status": "affected"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-12-02T11:10:51.855024Z",
                                "id": "CVE-2024-53861",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2024-12-02T11:12:17.956Z"
                }
            }
        ]
    }
}