{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-115585",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-22T22:53:15.238Z",
        "datePublished": "2026-10-23T19:31:52.598Z",
        "dateUpdated": "2026-10-23T19:31:52.598Z"
    },
    "containers": {
        "cna": {
            "title": "pypdf: Possible long runtimes for repeated malformed cross-reference entries (Follow-up)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-400",
                            "lang": "en",
                            "description": "CWE-400: Uncontrolled Resource Consumption",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-407",
                            "lang": "en",
                            "description": "CWE-407: Inefficient Algorithmic Complexity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/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-jr96-gvgh-j3r4",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-jr96-gvgh-j3r4"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/pull/4240",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/pull/4240"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2"
                }
            ],
            "affected": [
                {
                    "vendor": "py-pdf",
                    "product": "pypdf",
                    "versions": [
                        {
                            "version": "< 6.21.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-23T19:31:52.598Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing crafted cross-reference streams to produce long runtimes. This issue is fixed in version 6.21.2."
                }
            ],
            "source": {
                "advisory": "GHSA-jr96-gvgh-j3r4",
                "discovery": "UNKNOWN"
            }
        }
    }
}