{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-27628",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-20T22:02:30.027Z",
        "datePublished": "2026-02-25T02:45:37.543Z",
        "dateUpdated": "2026-02-27T19:49:02.019Z"
    },
    "containers": {
        "cna": {
            "title": "pypdf has a possible infinite loop when loading circular /Prev entries in cross-reference streams",
            "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": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "LOW",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 1.2,
                        "baseSeverity": "LOW",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-2rw7-x74f-jg35",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-2rw7-x74f-jg35"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/issues/3654",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/issues/3654"
                },
                {
                    "name": "https://github.com/py-pdf/pypdf/commit/f0a462d36971cf077d74492a348d0d06fd60ea4d",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/py-pdf/pypdf/commit/f0a462d36971cf077d74492a348d0d06fd60ea4d"
                }
            ],
            "affected": [
                {
                    "vendor": "py-pdf",
                    "product": "pypdf",
                    "versions": [
                        {
                            "version": "< 6.7.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-02-27T19:49:02.019Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "pypdf is a free and open-source pure-python PDF library. Prior to 6.7.2, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires reading the file. This has been fixed in pypdf 6.7.2. As a workaround, one may apply the patch manually."
                }
            ],
            "source": {
                "advisory": "GHSA-2rw7-x74f-jg35",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/py-pdf/pypdf/issues/3654",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-25T15:58:27.836793Z",
                                "id": "CVE-2026-27628",
                                "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": "2026-02-25T15:58:33.339Z"
                }
            }
        ]
    }
}