{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-113793",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-20T17:39:41.373Z",
        "datePublished": "2026-10-21T15:57:55.600Z",
        "dateUpdated": "2026-10-28T17:01:30.870Z"
    },
    "containers": {
        "cna": {
            "title": "pypdf: Possible infinite loop when removing tree items",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-835",
                            "lang": "en",
                            "description": "CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mx8-4j7g-633p",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-9mx8-4j7g-633p"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/pull/4188",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/pull/4188"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/commit/c9c35b4471c2eb5fe078094f6c816e69d4ed25a0"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/releases/tag/6.20.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/releases/tag/6.20.1"
                }
            ],
            "affected": [
                {
                    "vendor": "py-pdf",
                    "product": "pypdf",
                    "versions": [
                        {
                            "version": "< 6.20.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-21T15:57:55.600Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1."
                }
            ],
            "source": {
                "advisory": "GHSA-9mx8-4j7g-633p",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-28T16:51:43.110456Z",
                                "id": "CVE-2026-113793",
                                "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": "2026-10-28T17:01:30.870Z"
                }
            }
        ]
    }
}